ATORN BT40 ER40 collet chuck (ISO 7388-2) A=70 mm
Brand: ATORN
Art.-no. 23296476
Manufacturer article no. 21981099
EAN 4050293647044
Application
For clamping tools with straight shanks in collets, DIN 6499 shape A and B.
Execution
- Pre-balanced G6.3/25,000 rpm
- Precision version
- External and internal cone polished
- High concentricity
Advantage
- Positive-locking planar contact face for increased rigidity and vibration damping
- Extends the service life of cutting tools
Notes
The previous standard JIS B 6339 MAS BT was superseded by ISO 7388-2.
Delivery
1x BT30 collet chuck (ISO 7388-2); incl. clamping nut
 | |
Brand | ATORN |
Tool holding device | BT 40 |
Form | JD |
Collet type | ER 40 (472 E) |
Projecting length (A) | 70 mm |
Outer diameter (D) | 63 mm |
Min./max. clamping range | 3-26 mm |
Coolant supply | Internal |
Balancing quality | G 6,3 at 25000 rpm |
Concentricity tolerance | 5 µm |
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