Since tapping operations are critical the security and quality is important. To achieve a top result, not only the tapping tool is important, but also the tool holder. The new versatile CoroChuck™ 970 is designed for a stable and precise tapping process in all materials.
Benefits
- Improves tapping tool life
- Secure machining process
- Reduces the risk of cutting oversized threads significantly
Features
- Synchronized tapping reduces thrust force on tap flanks
- Accurate depth thanks to limited axial compensation
- New improved design for internal coolant
- Suitable for high pressure coolant up to 80 bar (1160 psi)
- More back-ends to fit your machine
Application
- Chuck designed to eliminate oversized threading
- Suitable for all synchronized tapping operations

Product range
- ER sizes for CoroChuck 970: 8, 11, 20, 25, 32, 40 and 50.
- ER-size 50 has a square inside the adaptor and should be used with the largest tap (M48). The collet that will be used with this large tap will be a collet without a square.
- For HSK 63 and HSK 100 it is possible to use MQL on ER sizes 20 and 25.
Design | Coromant Capto® | Coromant EH | ISO-Cone (ISO, MAS-BT, CAT-V) | BIG-PLUS (ISO, MAS-BT, CAT-V) | HSK | Cylindrical shank | Weldon |
Synchroflex® | C3, C4, C5, C6, C8, C10 | 25 | 30, 40, 50 | 30, 40, 50 | 63, 100 | 12, 16, 20 | 16, 20, 25, 25A, 40 |