Bucsa de gaurit cu guler
DIN 172 ( similar ISO 4247)
type A: Bore hole rounded at one end
Item no. Hardness Material
7619. HRC 62+2 Case-hardened stell as chosen
Inside and outside grinded in by manufacturer.
tolerance,with insertion chamfer.
For a drilling with tolerance range H6 or H7 in jig/fixture. Gradation of the bore hole d1 until 22,0 of 0,1 mm>22,0 of 0,5 mm. Type B ( Bore hole rounded at boths ends) = 10% surcharge.
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