Collar drill bushing form B to DIN 172, bore 39.5 x 30 mm, collar 59 mm, case-hardening steel

The collar drill bushing with a 39.5 mm bore comes in the short series at 30 mm. Its case-hardening steel at 740 ± 80 HV 10 withstands contact with the cutting edge over large batches, and the 59 mm collar fixes its position.

Benefits

• Bore 39.5 mm, ground and dimensionally accurate to DIN 172
• Overall length 30 mm in the short series
• Outside diameter 55 mm for the press fit in the drill plate
• Collar 59 mm with 5.0 mm height for axial location
• Case-hardening steel, hardened to 740 ± 80 HV 10 and ground
• Form B to DIN 172, the bore is rounded on both sides and can be loaded from either end

Applications

It is typically fitted into the drill plates of jigs in mechanical engineering, contract manufacturing and mould making, where the same 39.5 mm hole is produced again and again in the same place.

Standard and material

Dimensions and tolerances follow DIN 172 in form B. In form B the bore is rounded on the opposite side as well. The bushing is made of hardened and ground case-hardening steel with a hardness of 740 ± 80 HV 10.