Drill bush DIN 179 form B, bore 12.3 mm, length 28 mm, outside dia 22 mm, hardened steel

The medium version of this DIN 179 bush guides drills of 12.3 mm over an overall length of 28 mm. In form B the bore is rounded on both sides, which makes work in the jig easier.

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 12.3 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 4.8 mm between the 12.3 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.