Drill bush DIN 179 form A, bore 7.3 mm, length 16 mm, outside dia 12 mm, case-hardened steel

When drilling identical parts in series, this bush keeps the 7.3 mm hole in the same place from part to part. The overall length is 16 mm. The bore follows form A of DIN 179 and is therefore rounded on one side, which makes it easier to enter the drill.

Benefits

• Overall length of 16 mm in the medium version of the three lengths short, medium and long
• Special case-hardening steel, hardened to 740 ± 80 HV 10 and ground
• Bore to form A, that is rounded on one side
• Guide bore of 7.3 mm to DIN 179 for the matching drill
• Outside diameter of 12 mm as a ground seat in the jig plate
• Bore rounded on one side, giving a defined fitting direction in the jig

Applications

• Holes in sheet metal, profiles and housings that have to be repeatable in position and diameter
• Maintenance and repair work when hole patterns are reworked
• Gauge making and prototype work in small batches
• Drilling jigs and drilling templates in series production

Standard and material

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