Used Bezel Quills for sale (1,464)

Condition: good (used), Bezel, setting stick, lynette -Quads: for bezel, 3 pieces -Diameter: 40 mm -Length: 170 mm -Groove: 7.7 mm -Weight: 4.2 kg Tjdpfohf Nh Sox Ac Tjb

Condition: good (used), Bezel, setting stick, lynette -Number: 3x bezel quills -Diameter: 60 mm -Length: 140 mm Tjdpfx Aceb Ri S Uo Teb -Grooves: 6/10 mm -Edition: Gray cast iron -Weight: 6 kg

Condition: ready for operation (used), Year of construction: 2002, turning length 750 mm turning diameter 310 mm turning diameter over slide rest 175 mm Tjdpfxoxab Tps Ac Tsb spindle bore 32.0 mm tailstock quill taper MT 3 MK turning speeds 85 - 2200 U/min bed width 200 mm spindle taper DIN 55027 GR 5 total power requirement 2.2 kW weight of the machine ca. 710 kg range L-W-H 1884 x 717 x 1262 mm New price ~ 20.000 euros from a technical college (!!) - in checked condition - machine videos - ?v=iqU7Bkh6INo ?v=aSViqjk51Ik Furnishing: - Robust conventional center lathe - 3-jaw lathe chuck Ø 160 mm, with replacement jaws - "NEWALL" digital display, front left - MULTIFIX steel holder with 4x inserts - fixed bezel - moving bezel - Movable tailstock - Foot/spindle brake - Machine swing feet - User manual (PDF/NL) * all technical data: - Turning diameter over bed 310 mm - Distance between centers 750 mm - Turning diameter over support 175 mm - Spindle bore 32 mm - bed width 200 mm - Spindle mount / DIN 55027 GR 5 - Spindle taper 4.5 M - Spindle speed 85 - 2000 rpm. - Metric thread range 0.1 - 28 mm - Thread module range 0.1 - 1.75 - Thread DP range 4 - 70 - Adjustment range cross slide 150 mm - Adjustment range top slide 95 mm - Tailstock quill diameter 40 mm - Tailstock recording 3 MK - Tailstock quill travel 100 mm - Motor power 2.2 kW - Weight 770 kg

Condition: used, Year of construction: 2013, turning diameter 660 mm Tsdpfx Aoub Uu Ijc Teb turning length 1500 mm control FAGOR centre height 330 mm spindle passage 82 mm number of spindle speeds 30-2000 U/min bed width 390 mm rapid speed X/Z 4 - 8 m/min tailstock quill diameter 75 mm Main spindle capacity 15 kW weight of the machine ca. 3200 kg dimensions of the machine ca. 3800 x 1800 x 2150 m First commissioned in 2015, very good condition - FANUC Series 18i TB Control, Manual Guide i Function - Central control panel for machine and CNC control on the pedal arm 45 ° swiveling - 12-fold tool turret - Fanuc drive with 30 kW (50% ED) - Chip conveyor - Bezel - 3 jaw chucks

Condition: used, Year of construction: 1966, turning diameter over bed 330 mm turning dia. in gap 400 mm turning length 600 mm centre distance 750 mm spindle turning speed range 20 - 1000 U/min Todpfx Asxrg Atsc Tob spindle bore 25 mm 3-jaw chuck Röhm, Ø 200 mm dimensions of the machine ca. 2000 x 800 x 1500 mm weight of the machine ca. 1200 kg Fixed bezel Turning bezel Turning center point Three-jaw chuck Röhm, Ø 200 mm, incl. inner and outer jaws Quick-change tool holder Original Multifix size B with 2 change holders Spindle brake Tailstock quill MK3 Machine feet Lathe chuck guard Chip guard Work light

Condition: new, turning diameter over bed 400 mm turning diameter over slide rest 260 mm turning length 1500 mm turning diameter in the gap 570 mm turning speeds 45 - 1800 U/min centre height 210 mm spindle bore 52 mm tailstock quill taper MT 4 MK connected load frequency 400 V total power requirement 3,5 kW weight of the machine ca. 1,5 t dimensions of the machine ca. 2,6 x 1,1 x 1,7 m Professional industrial machine digital display 3-jaw chuck 200 mm. 4-jaw chuck 200 mm. Faceplate 280mm Bezel fixed Bezel rotating Multifix steel holder. Machine light Foot brake removable chip tray, chip protection wall Tsdpfxoy Ehxxj Ac Tjb Hardened and ground bed rails Complete coolant system Feed protection Machine feet Machine tool

Condition: new, turning diameter over bed 320 mm turning diameter over slide rest 200 mm turning length 900 mm turning speeds 75 - 2000 U/min centre height 160 mm spindle bore 50 mm tailstock quill taper MT 3 MK connected load frequency 230 V total power requirement 1,5 kW weight of the machine ca. 0,29 t dimensions of the machine ca. 2,0 x 0,8 x 1,56 m Professional lathe 3-jaw chuck 4-jaw chuck faceplate bezel fixed running bezel Quick-change steel holder with 4 cassettes Halogen machine light Chip tray, chip protection wall Tsdpfx Aovn Uz Tec Tsb Hardened and ground bed tracks Complete coolant system feed protection machine tools

Condition: used, Bezel, stick, lynette -Transfer in current condition as seen -Max. Passage: Ø 260 mm -Tip height: 370 mm -without: quills -Technical drawing: in the photos Tedjdl U Nbepfx Ac Tjb -Dimensions: 680/135/H830 mm -Weight: 92 kg

Condition: new, turning diameter over bed 250 mm turning diameter over slide rest 130 mm turning length 550 mm turning speeds 50 - 2000 U/min Tsdpfx Aorfd Thsc Tob centre height 125 mm spindle bore 20 mm tailstock quill taper MT 2 tailstock quill stroke 60 mm metric threading 0,4 - 3,0 mm thread - inch 10 - 44 TPI thread - module 0,2 - 12,5 mm connected load frequency 230 V total power requirement 1,0 kW weight of the machine ca. 0,12 t dimensions of the machine ca. 1,09 x 0,59 x 0,45 m Equipped with - 20 mm spindle passage - adjustable guideways - Powerful 1.0 kW motor - continuously variable speed Scope of delivery: - 3-jaw chuck 100 mm, - 4-jaw faceplate chuck 125mm - standing and rotating bezel - Splash guard - Feed protection

Condition: new, turning diameter over bed 320 mm turning diameter over slide rest 200 mm turning length 900 mm turning speeds 75 - 2000 U/min centre height 160 mm spindle bore 50 mm tailstock quill taper MT 3 MK connected load frequency 230 V Tsdpfx Acsnq Saye Tjb total power requirement 1,5 kW weight of the machine ca. 0,29 t dimensions of the machine ca. 2,0 x 0,8 x 1,56 m Professional lathe 3-jaw chuck 4-jaw chuck faceplate bezel fixed running bezel Quick-change steel holder with 4 cassettes Halogen machine light Chip tray, chip protection wall Hardened and ground bed tracks Complete coolant system feed protection machine tools

Condition: new, turning diameter over bed 280 mm turning diameter over slide rest 158 mm turning length 600 mm turning speeds 45 - 2000 U/min centre height 140 mm spindle bore 26 mm tailstock quill taper MT 2 tailstock quill stroke 60 mm metric threading 0,25 - 2,5 mm thread - inch 6 - 96 TPI connected load frequency 230 V total power requirement 0,75 kW weight of the machine ca. 0,16 t dimensions of the machine ca. 1,26 x 0,58 x 0,60 m Professional metal lathe, gearing machine - 3-jaw chuck - 4-jaw chuck Tsdpevu Hanefx Ac Tsb - hardened bed tracks - Clamping plate - 4-way chisel holder - Feed protection - standing and rotating bezel - Splash guard - Machine light

Condition: new, turning length 2000 mm centre height 330 mm swing diameter over bed slide 660 mm turning dia. in gap 900 mm swing diameter over slide rest 460 mm spindle bore 105 mm turning speeds 25 - 1600 U/min bed width 400 mm spindle taper 55029 D 1-8 Tedpfoxabpqex Ac Tsb taper in tailstock 5 MK quill travel 235 mm total power requirement 7,5 kW weight of the machine ca. 2900 kg. range L-W-H 3630 x 1200 x 1520 mm Scope of delivery : - 3-axis digital display ES-12 V with LCD display - Slip clutch - Rapid traverse longitudinally and flatly - LED machine light - 3-jaw chuck PS3-315 mm / D8 - Clamping disk 450 mm - Fixed bezel - Passage diam. max. 180 mm - Revolving bezel - Passage diam. max. 120mm - 2 centering points - Motor with magnetic brake according to CE standards - Foot pedal with braking function according to CE - Initial filling with Shell Tellus 46 - Coolant device - Quick-change tool holder with 4 inserts - Protective device for quick-change tool holder - Interchangeable wheels - reducing sleeve - Chip back wall - Cable routing via energy chain - Operating tool

Condition: new, turning diameter over bed 250 mm turning diameter over slide rest 140 mm turning length 550 mm turning speeds 125 - 2000 U/min centre height 125 mm spindle bore 26 mm tailstock quill taper MT 2 MK tailstock quill stroke 65 mm connected load frequency 230 V total power requirement 0,75 kW weight of the machine ca. 0,135 t dimensions of the machine ca. 1,25 x 0,6 x 0,6 m Speed in 6 levels 125 - 2000rpm. 3-jaw chuck 125 mm. 4-jaw chuck 125 mm. (Independent) Fixed bezel. Todpfeupxctex Ac Tjb Revolving bezel. 4-fold steel holder. chip tray. back panel. spindle protection. Hardened bed rails. Longitudinal feed with left / right switching. Set of change gears. Associated Tools.

Condition: new, turning diameter over bed 320 mm turning diameter over slide rest 220 mm turning length 600 mm turning diameter in the gap 320 mm turning speeds 60 - 1650 U/min centre height 160 mm spindle bore 38 mm tailstock quill taper MT 3 MK connected load frequency 400 V total power requirement 1,1 kW weight of the machine ca. 340 Kg dimensions of the machine ca. 1,4 x 0,75 x 0,7 m Center lathe with: 3-jaw chuck 160 mm. 4-jaw chuck 200 mm. Faceplate 200mm Fixed bezel Continuous bezel 4-way steel holder. Halogen machine light Chip tray, chip protection wall Hardened and ground bed tracks Longitudinal and cross feed Complete coolant system Tedpfx Acjupxlne Tjb Forage protection Set of change gears Machine tools

Condition: new, turning diameter over bed 320 mm turning diameter over slide rest 200 mm turning length 900 mm turning diameter in the gap 320 mm turning speeds 75 - 2000 U/min centre height 160 mm spindle bore 38 mm tailstock quill taper MT 3 connected load frequency 400 V total power requirement 1,5 kW weight of the machine ca. 0,4 t dimensions of the machine ca. 1,6 x 0,75 x 1,7 m SINO digital display 3-jaw chuck 200 mm. 4-jaw chuck 200 mm. Faceplate 250mm Tedpfx Acjhwavrj Tsb bezel fixed Quick-change steel holder with 4 pcs. steel holder machine light Chip tray, chip protection wall Hardened and ground bed tracks lining protection machine tools

Condition: new, turning diameter 420 mm turning length 1500 mm swing diameter over bed slide 250 mm Swingdiameter in the bed bridge 590 mm centre height 210 mm Turning length in the bed bridge 260 mm reus 16 (45-1800) U/min tail stock MK 4 quill stroke 120 mm diameter of quill 50 mm spindle taper DIN ISO 702-2 Nr. 6 spindle bore 52 mm spindle cone MK 6 feed längs 17 / 0,05 - 1,7 m/min feed plan 17 / 0,025 - 0,85 m/min total power requirement 4,6 kW weight of the machine ca. 1340 kg dimensions of the machine ca. 2440 x 915 x 1375 mm Fully equipped master and feed spindle lathes. TH 4215 with digital position indicator DPA 21 / 3462070 - Hardened and ground Z-axis guideway - Spindle mount Camlock DIN ISO 702-2 No. 6 - Precisely crafted slide - Hand wheels with adjustable fine scaling 0.04 / 0.02 mm - Quadruple steel holder - All guides can be adjusted using V-ledges - Adjustment range top slide ± 90° - Guaranteed concentricity of the spindle nose better than 0.015 mm - Main spindle running in oil bath - Smooth-running gear wheels, hardened and ground with 2 adjustable Precision tapered roller bearings - Hand wheels decoupled and tested according to EN 23125 - Two-channel right-left switch tested according to EN 23125 - Switch with life cycle calculation, tested according to EN ISO 13849 - All metric pitches in the range 0.2 to 14mm/rev and all Inch threads in the range of 72 - 2 threads per inch without changing the Change gears adjustable by shift lever in the control panel - Clockwise/counterclockwise rotation can be switched on the bed slide via the switching spindle - Central lubrication in bed slide - Meehanite cast base and machine bed in one piece - Lead screw cover - Emergency stop device with foot control - Safety handwheels with snap-out function in the X and Z axes - Tailstock for taper turning adjustable ± 10 mm - Tailstock quill and hand wheel with adjustable fine scaling 0.025 mm - Quick, easy and tool-free adjustment using a clamping lever - Heavily ribbed prism bed, induction hardened and precision ground cast iron - Coolant device with separate coolant tank with level indicator and oil separator; easy and complete emptying and cleaning according to DIN Tsdek Egrpopfx Ac Tsb - LED machine lamp in the chip guard Models TH 4210D and TH 4215D with digital readout DPA21 - User-friendly membrane keyboard, splash-proof, closed andglare-free - Glass scales scope of delivery - Fixed bezel passage Ø 15 - 145 mm - Revolving bezel passage Ø 10 - 75 mm - LED machine light - Reducing sleeve MT 6 / MT 4 - Fixed center MK 4 - Change gear set - Position stop with fine adjustment - Initial filling of the machine with quality oil - Operating tool Incl. special accessory OPTIMUM three-jaw lathe chuck centrically clamping Ø 250 mm Quick change holder SWH5-B set

Condition: excellent (used), Year of construction: 2017, operating hours: 2,728 h, Doosan Puma GT2100 CNC Slant Bed Lathe With Doosan-Fanuc I Series Control With Samchully MH-208 V1 Ø203mm 3 Jaw Power Chuck. Maximum Swing Ø600mm. Maximum Swing Over Cross Slide Ø390mm. Maximum Turning Ø390mm. Maximum Turning Length 562mm. Bar Capacity Ø65mm. Axis Travel 'X'=230mm, 'Z'=580mm. Rapid Feedrates 'X'=24m/min, 'Z'=30m/min. Spindle Nose A2-6. Maximum Spindle Speed 4,500rpm (18.5kW Motor). 12 Station Turret. Programmable Tailstock Travel 580mm, Tailstock Quill Ø80mm, Quill Travel 80mm, Taper MT4. Tool Shank 25 x 25mm. S/No. ML0228-001618 (2017). Note: Low Running Hours 2,728. Tjdpfszt R Ucox Ac Tjb With Coolant System, Tool Setter, Parts Catcher, Ø165mm Collet Unit, Foot Switch, Quantity Of Assorted Hard/Soft Jaws & Manuals. Approx Dimensions L2,940 x W1,632 x H1,700mm. Weight 3,500kg.

Condition: excellent (used), functionality: fully functional, travel distance X-axis: 400 mm, travel distance Y-axis: 250 mm, travel distance Z-axis: 450 mm, spindle speed (max.): 3,000 rpm, spindle speed (min.): 60 rpm, feed rate X-axis: 1 m/min, total height: 1,750 mm, total length: 1,400 mm, total width: 1,250 mm, quill diameter: 60 mm, space requirement width: 1,500 mm, space requirement length: 1,500 mm, space requirement height: 1,800 mm, distance table center to spindle nose: 590 mm, spindle stroke: 130 mm, workpiece weight (max.): 400 kg, Equipment: rotational speed infinitely variable, Important note! Payment for the machine, as is customary with used machines, is made in full before loading, no partial payments or installments! HENRI HAUSER OP3 High-precision drilling machine / Made in Bienne/Biel, Switzerland Excellent condition! Coordinate drilling machine / jig boring machine with tool package (see photos) in very well-maintained, exceptional condition, second owner (41 years in current ownership). This quality will never be produced again! The coordinate drilling machine has the rare option of motorized table drive in the X and Y axes and potentiometers. This eliminates the need for tedious manual adjustment of the individual coordinates over long distances using hand cranks. Furthermore, it has rare thermal stabilization and expansion compensation. Two heaters are provided for this purpose, which can and must be switched on separately before starting work to maintain high accuracy and dimensions. This explains the factory-high positioning accuracy of 0.002 mm with a resolution of 0.00. It should be noted that the machine has two Heidenhain digital displays with a total of 4 glass scales with 1My resolution, also for the quill feed. This is a major advantage for precise drilling and facing at depth with Wohlhaupter, spindle tools, etc. With the options mentioned and in this first-class condition, it is very rare and highly unlikely to be available again. These machines are primarily used in the watch industry, gunsmithing / defense industry, precision engineering, material testing and the optical industry, where the highest precision is required. Also ideally suited for engine construction/overhaul, special machine construction, etc. All documents, manuals, electrical wiring diagrams, etc. are, of course, available in their original form! Technical data: Todjzuvwlepfx Ac Tob Table length 550 mm, table width = 320 mm, longitudinal travel X-axis = 400 mm, transverse travel Y-axis = 250 mm, Vertical travel Z-axis = 400 mm Max. workpiece weight on the table = 400 kg, spindle mounting MK 2, stroke of the drilling spindle (Z-axis) = 130 mm Distance table to spindle = 590 mm, spindle speeds continuously variable from 60 rpm to 3000 rpm Feeds: Drilling spindle slide: 2 stages from 0.03 mm/rev to 0.06 mm/rev Connection 50 Hz 3x 380 Volt, spindle motor 0.80 HP Machine dimensions: Length = 1400 mm, Width = 1250 mm, Height = 1750 mm Machine weight approx. 1500 kg. Shipping (direct transport without reloading) within the EU is possible. Price net for export within the EU. Example: Secure shipping by direct transport (without reloading!) to France/Spain/Italy, etc. up to 1700 km distance approx. EUR 1100 - 1450.

Condition: new, turning diameter over bed 400 mm Todjupxrhspfx Ac Teb turning diameter over slide rest 264 mm turning length 1000 mm turning diameter in the gap 550 mm turning speeds 44 - 2000 U/min centre height 200 mm spindle bore 52 mm tailstock quill taper MT 4 MK connected load frequency 400 V total power requirement 1,5 / 2,4 kW weight of the machine ca. 0,9 t dimensions of the machine ca. 1,9 x 0,8 x 1,56 m 3-axis digital display 3-jaw chuck 200 mm. 4-jaw chuck 200 mm. Faceplate 320mm bezel fixed running bezel 4-fold steel holder. Halogen machine light machine light foot brake removable chip tray, chip protection wall Hardened and ground bed tracks Complete coolant system lining protection machine tools

Condition: good (used), Year of construction: 2012, operating hours: 7,360 h, Doosan Lynx 220B CNC Slant Bed Lathe With Doosan-Fanuc I Series Control Todpfx Aozt R U Noc Tsb With Ø135mm Collet Chuck. Maximum Swing Ø510mm. Maximum Swing Over Cross Slide Ø290mm. Maximum Turning Ø320mm. Maximum Turning Length 305mm. Bar Capacity Ø51mm. Axis Travel 'X'=175mm, 'Z'=330mm. Rapid Feedrates 'X'=30m/min, 'Z'=36m/min. Spindle Nose A2-6. Maximum Spindle Speed 5,000rpm (15kW Motor). Spindle Nose A2-6. Spindle Through Bore Ø61mm. 12 Station Turret. Tailstock Quill Ø80mm, Quill Travel 80mm, Taper MT4. Tool Shank 25 x 25mm. Boring Bar Sleeve Ø40mm. S/No. ML0014-005414 (2012). Low Running Hours 7,360. With Coolant System, Tool Setter, Parts Catcher, Seoam CAH-08 3 Jaw Power Chuck, Tailstock, Foot Switch, Quantity Of Assorted Hard/Soft Jaws & Manuals. Approx Dimensions L2,325 x W1,600 x H1,600mm. Weight 2,900kg.

Condition: new, turning diameter over bed 400 mm turning diameter over slide rest 280 mm turning length 1000 mm turning speeds 70 - 2000 U/min centre height 195 mm spindle bore 54 mm tailstock quill taper MT 3 MK Tedpep U Ut Ajfx Ac Tsb connected load frequency 400 V total power requirement 2,2 kW weight of the machine ca. 0.85 t dimensions of the machine ca. 1,95 x 1,0 x 1,75 m Professional industrial machine 3-axis digital display 3-jaw chuck 200 mm. 4-jaw chuck 200 mm. Faceplate 280mm Bezel fixed Bezel rotating 4-fold steel holder. Halogen machine light Machine light Foot brake removable chip tray, chip protection wall Hardened and ground bed rails Complete coolant system Feed protection Machine feet Machine tool

Condition: good (used), Year of construction: 2018, functionality: fully functional, machine/vehicle number: 00820002981, turning length: 800 mm, turning diameter: 500 mm, spindle speed (max.): 3,600 rpm, spindle bore: 118 mm, rapid traverse X-axis: 36 m/min, rapid traverse Y-axis: 40 m/min, rapid traverse Z-axis: 30 m/min, bar passage: 102 mm, total height: 2,500 mm, total length: 8,000 mm, total width: 2,400 mm, overall weight: 10,000 kg, controller manufacturer: DMG, controller model: ERGOLINE, input voltage: 400 V, input frequency: 50 Hz, input current: 125 A, nominal power (apparent): 74 kVA, operating hours of spindle: 4,439 h, Equipment: chip conveyor, DMG MORI CTX BETA 800 TC CNC turning and milling center - Note: the spindle hours may increase slightly! - Swing diameter: 500 mm - Distance between centers: 1020 mm - Max. workpiece weight (chuck parts/chuck weight): 100 kg - Max. workpiece center of gravity from spindle flange: 120 mm - Travel X1: from -10 to 490 mm - Travel Y1: +-100 mm - Travel Z1: 845 mm - Travel Z2: 600 mm - Travel Z3: 800 mm - Spindle flange diameter: 220 H 5 mm - Chuck diameter: 315 mm - Diameter of front bearing: 160 mm - Rapid traverse speed, Z-axis: 40 m/min - Resolution, Z-axis: 0.001 mmm - B-axis max. swivel speed: 70 rpm - Angular resolution: 0.001° - Tailstock travel: 800 mm - Quill force: 8 kN Tsdpjzxx Dcefx Ac Teb The machine is equipped with a tailstock and a three-jaw chuck, diameter: 250 mm, as well as a chip conveyor and coolant system. FCA D-63843 Niedernberg - loaded onto a truck.

Condition: new, turning diameter over bed 290 mm turning diameter over slide rest 170 mm turning length 750 mm turning speeds 75 - 2000 U/min centre height 145 mm Tsdpfx Aovxw Htsc Tjb spindle bore 38 mm tailstock quill taper MT 3 MK tailstock quill stroke 80 mm connected load frequency 230 V total power requirement 1,5 kW weight of the machine ca. 0,34 t dimensions of the machine ca. 1,3 x 0,75 x 0,7 m Longitudinal and transverse feed. 3-jaw chuck 160 mm. 4-jaw chuck 160 mm. faceplate 4-way steel holder with 4 pcs tool holders 2 pcs. bezels Machine light Drip tray Hardened bed tracks. Emergency stop switch. Feed protection Set of wheels. Machine tools.

Condition: excellent (used), Year of construction: 1984, functionality: fully functional, Deckel FP1 milling machine with Heidenhain digital control in very good condition. Technical specifications: * Speed: 40 - 2000 rpm * Feed rate, continuously variable in 3 axes Tjdozr Hdwspfx Ac Tsb * Rapid traverse in 3 axes * Spindle brake * Table travel X/Y/Z: 300/160/340 mm * Vertical quill * Clamping system SK40/M16 * Weight approx. 800 kg Accessories and equipment: 3-axis Heidenhain digital read-out Coolant system Operating manual, spare parts list

Condition: good (used), Year of construction: 1979, functionality: fully functional, spindle mount: MK 3, For sale is a column drill press made by Alzmetall in good, used condition, as can be seen in the pictures. Technical data: • Manufacturer: Alzmetall • Model: AB3-ES • Speed: approx. 65 - 1,750 rpm • Quill stroke: approx. 180 mm • Table size: approx. 515 x 415 mm • Year of manufacture: 1979 • With coolant pump Tedozvrt Sspfx Ac Tjb • Condition: Used, functional The machine can be inspected and tested at any time! If interested, two identical machines are available! Shipping costs via freight carrier: approx. €190 Phone number: 01575 2236716 You will receive an invoice with VAT shown. Inspection/collection is possible by arrangement in 42855 Remscheid. Sale ex works 42855 Remscheid, free loading. Subject to errors in technical data and prior sale.