Collar drill bushing form B to DIN 172, bore 16.5 x 36 mm, collar 30 mm, case-hardening steel

With a bore of 16.5 mm and an overall length of 36 mm, this bushing keeps the tool on track inside the drilling jig. The collar of 30 mm diameter and 4.0 mm height bears on the drill plate and secures the bushing against axial slipping.

Benefits

• Overall length 36 mm in the long series
• Outside diameter 26 mm for the press fit in the drill plate
• Bore 16.5 mm, ground and dimensionally accurate to DIN 172
• Form B to DIN 172, the bore is rounded on both sides and can be loaded from either end
• Collar 30 mm with 4.0 mm height for axial location
• Case-hardening steel, hardened to 740 ± 80 HV 10 and ground

Applications

It is used wherever holes of 16.5 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 basis is DIN 172, form B, with a guiding bore of 16.5 mm. 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 afterwards.