Drill bush DIN 179 form B, bore 12.7 mm, length 28 mm, outside dia 22 mm, hardened steel

This drill bush guides tools of 12.7 mm diameter and keeps the drilling axis in position over the full length of 28 mm. The bore follows form B of DIN 179 and is therefore rounded on both sides.

Benefits

• Special case-hardening steel, hardened to 740 ± 80 HV 10 and ground
• Bore rounded on both sides to form B, so the bush can be fitted either way round
• Guide bore of 12.7 mm to DIN 179 for the matching tool
• Overall length of 28 mm in the medium version of the range short, medium and long
• Wall thickness of 4.7 mm between the 12.7 mm bore and the 22 mm seat

Applications

• Drilling jigs and drill templates in series production
• Jig and tool making
• Repeatable hole patterns in sheet metal, profiles and housings
• Maintenance work where hole patterns are reworked

Standard and material

The bush is made to DIN 179 in form B, and the bore is rounded on both sides. The material is special case-hardening steel, hardened to 740 ± 80 HV 10 and ground.