Collar drill bushing DIN 172 form B, bore 31.5 mm, length 45 mm, collar 52 mm, hardened steel

When drilling in jigs, this bushing keeps the 31.5 mm tool on position. The guiding length is 45 mm, the press fit measures 48 mm in diameter and the collar 52 mm.

Benefits

• Form B to DIN 172, the bore is rounded on both sides and can be loaded from either end
• Bore 31.5 mm, ground and dimensionally accurate to DIN 172
• Overall length 45 mm in the medium series
• Outside diameter 48 mm for the press fit in the drill plate
• Collar 52 mm with 5.0 mm height for axial location
• Case-hardening steel, hardened to 740 ± 80 HV 10 and ground

Applications

It is used wherever holes of 31.5 mm have to be produced without centre punching and without wandering, for example in jigs for series parts, in assembly gauges or in prototype work.

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.