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- Headed Drill Bush 7619
DRILL BUSH WITH COLLAR
DIN 172 (similar to ISO 4247)
Item no.:
Type A: 7619.
Type B: 7629.
1) For drilling with tolerance range H 6 or H 7 in jig/fixture.
Version:
Type A: Bore hole rounded at one end, inside and outside grinded to tolerance, with insertion chamfer.
Type B: Bore hole rounded at boths ends, inside and outside grinded to tolerance, with insertion chamfer.
Material:
Case-hardened steel as chosen by manufacturer
Hardness:
740 + 80 HV 10
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