Collar drill bushing DIN 172 form B, bore 17.5 mm, length 28 mm, collar 30 mm, hardened steel

With a ground bore of 17.5 mm this bushing holds the tool on position over a guiding section of 28 mm. The collar of 30 mm diameter and 4.0 mm height stops the bushing from travelling through the fixture while drilling.

Benefits

• Bore 17.5 mm, ground and dimensionally accurate to DIN 172
• Collar 30 mm with 4.0 mm height for axial location
• Overall length 28 mm in the medium series
• Outside diameter 26 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.