ATORN chuck for solid drill bits BT40 (ISO 7388-2) dia. 20 mm A=72 mm
Brand: ATORN
Art.-no. 23163116
Manufacturer article no. 22661020
EAN 4050293714357
Individual prices for customers after login
Application
This chuck is used to clamp indexable insert solid drill bits that are fixed with two screws, similar to a surface chuck.
Execution
- Alloyed case-hardening steel, core tensile strength at least 950 N/mm²
- Case-hardened HRc 60 ± 2 (HV 700 ± 50), hardness depth 0.8 mm ± 0.2 mm, black oxide finish
- Taper angle tolerance quality < AT3 in accordance with DIN 7187 and DIN 2080
- Max. concentricity < 0.005 mm
Notes
The previous standard JIS B 6339 MAS BT was superseded by ISO 7388-2.
Delivery
1x BT40 solid drill chuck (ISO 7388-2)
 | |
Brand | ATORN |
Tool holding device | BT 40 |
Form | JD |
Clamping diameter (d1) | 20 mm |
Outer diameter (D) | 40 mm |
Projecting length (A) | 72 mm |
Coolant supply | Internal axial |
Clearance length to collar (L2) | 46 mm |
Clamp in depth (T) | 56 mm |
Balancing quality | G 2.5 at 25,000 rpm |
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