Collar drill bushing DIN 172 form A, bore 11.6 mm, length 20 mm, collar 22 mm, hardened steel

This collar drill bushing guides drills and reamers of 11.6 mm diameter over an overall length of 20 mm. The 18 mm outside diameter fits into the drill plate, while the 22 mm collar rests on the plate surface and takes up the feed force.

Benefits

• Bore 11.6 mm, ground and dimensionally accurate to DIN 172
• Collar 22 mm with 4.0 mm height for axial location
• Overall length 20 mm in the medium series
• Outside diameter 18 mm for a press fit in the drill plate
• Form A to DIN 172 with the bore rounded on the collar side, so the tool enters easily
• Case-hardening steel hardened to 740 ± 80 HV 10

Applications

Typical fields of use are drilling templates, fixtures for small batch and series production, mould making and maintenance.

Standard and material

The design complies with DIN 172 form A, in which the bore is rounded only on the collar side. The material is case-hardening steel, hardened to 740 ± 80 HV 10 and ground.