Collar drill bushing DIN 172 form B, bore 25.5 mm, length 45 mm, collar 39 mm, hardened steel

Designed for tools of 25.5 mm diameter, this bushing seats in the fixture with an outside diameter of 35 mm. The overall length of 45 mm in the long series sets the guiding length, and the 39 mm collar secures the bushing axially.

Benefits

• Bore 25.5 mm, ground and dimensionally accurate to DIN 172
• Collar 39 mm with 5.0 mm height for axial location
• Overall length 45 mm in the long series
• Outside diameter 35 mm for a press fit in the drill plate
• Form B to DIN 172 with the bore rounded on both sides, so the bushing can be used from either end
• 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 B, in which the bore is rounded on both sides. The material is case-hardening steel, hardened to 740 ± 80 HV 10 and ground.