Version:
Spiral flute precision drill for plastics. Self-centring with 1-cutter geometry, achieves very high alignment accuracy. Polished helical flutes for optimum chip evacuation.
Maintains the tolerance band IT7 from entry ⌀ through to exit ⌀, due to special point geometry.
Note:
Flute length L
C = L
2 + 1.5 × D
C.
HB and HE shanks are available at the same price as HA.
For
HB shanks: use order
No. 121201 + 129100HB.
For
HE shanks: use order
No. 121201 + 129100HE.