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- Headless Drill Bush 7819
DRILL BUSH WITHOUT COLLAR
DIN 179 (similar to ISO 4247)
Item no.:
Type A: 7819.
Type B: 7829.
1) For drilling with tolerance range H 6 or H 7 in jig/fixture.
Verion:
Type A: Bore hole rounded at one end, inside and outside grinded in 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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