Collar drill bushing form B to DIN 172, bore 15 x 36 mm, collar 26 mm, case-hardening steel

This collar drill bushing guides drills and reamers of 15 mm diameter over an overall length of 36 mm. The 22 mm outside diameter sits in the press fit of the drill plate, while the 26 mm collar rests on the plate surface and takes up the feed force.

Benefits

• Ground guiding bore of 15 mm within the tolerances of DIN 172
• All-round collar of 26 mm diameter and 4.0 mm height acting as a stop
• Press fit of 22 mm outside diameter in the holder of the jig
• Hardened case-hardening steel at 740 ± 80 HV 10 with a ground surface
• Guiding length of 36 mm, long design
• Form B design of DIN 172 with the bore rounded on both sides, also for a reversed fit

Applications

It is typically fitted into the drill plates of jigs in mechanical engineering, contract manufacturing and mould making, where the same 15 mm hole is produced again and again in the same place.

Standard and material

The basis is DIN 172, form B, with a guiding bore of 15 mm. In form B the bore is rounded on the opposite side as well. The material is case-hardening steel, hardened to 740 ± 80 HV 10 and ground afterwards.