Collar drill bushing DIN 172 form B, bore 24 mm, length 36 mm, collar 39 mm, hardened steel

With a ground bore of 24 mm this bushing holds the tool on position over a guiding section of 36 mm. The collar of 39 mm diameter and 5.0 mm height stops the bushing from travelling through the fixture while drilling.

Benefits

• Bore 24 mm, ground and dimensionally accurate to DIN 172
• Overall length 36 mm in the medium series
• Outside diameter 35 mm for a press fit in the drill plate
• Collar 39 mm with 5.0 mm height for axial location
• Case-hardening steel hardened to 740 ± 80 HV 10
• Form B to DIN 172 with the bore rounded on both sides, so the bushing can be used from either end

Applications

The bushing is used in drilling jigs in tool and fixture making, in series production and in repair work where holes have to be placed repeatably.

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.