2-11 Aluminum with Silicon less than 12%
Aluminium Alloys(with Silcon 12%) and Copper Alloys(Hard Bronze)
Spiral Points for Through Holes
Form B: 4~5 chamfering.
Tolerance: ISO 2-6H
DLC(Diamond) Coating
Spiral Points for Through Holes
Form B: 4~5 chamfering.
Tolerance: ISO 2-6H
DLC(Diamond) Coating
Best Art. No. in normal stock: DIN 371: 7450
DIN376: 7451
JIS B0251/5
Other Art. No. for Best recommendation:
DIN371: Internal Coolant: B7450
DIN376: Internal Coolant: B7451
*Please refer to BOSS DIN CATALOGUE for Specification and Technical Data*


