Collar drill bushing form B to DIN 172, bore 26 x 45 mm, collar 39 mm, case-hardening steel

This bushing of the long series guides drills of 26 mm diameter over 45 mm. The collar with 5.0 mm height stops the bushing from being pushed down through the holder during machining and sets its height clearly.

Benefits

• Bore 26 mm, ground and dimensionally accurate to DIN 172
• Collar 39 mm with 5.0 mm height for axial location
• Outside diameter 35 mm for the press fit in the drill plate
• Case-hardening steel, hardened to 740 ± 80 HV 10 and ground
• Overall length 45 mm in the long series
• Form B to DIN 172, the bore is rounded on both sides and can be loaded from either end

Applications

It suits drilling jigs, drill templates and assembly fixtures in which the tool has to be guided safely over 45 mm, even with frequent tool changes.

Standard and material

The design complies with DIN 172 form B. 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.