Collar drill bushing DIN 172 form A, bore 27.5 mm, length 25 mm, collar 46 mm, hardened steel

Designed for tools of 27.5 mm diameter, this bushing seats in the fixture with an outside diameter of 42 mm. The overall length of 25 mm in the short series sets the guiding length, and the 46 mm collar secures the bushing axially.

Benefits

• Bore 27.5 mm, ground and dimensionally accurate to DIN 172
• Collar 46 mm with 5.0 mm height for axial location
• Overall length 25 mm in the short series
• Outside diameter 42 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.