Drill bush DIN 179 form A, bore 12.8 mm, length 28 mm, outside dia 22 mm, case-hardened steel

The bush takes over the guidance of the drill directly at the workpiece. It is sized for a bore diameter of 12.8 mm and is 28 mm long. The 22 mm seat and the 12.8 mm bore are ground, so the bush can be pressed into the fixture without any rework.

Benefits

• Outside diameter of 22 mm as a ground seat in the jig plate
• Overall length of 28 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 12.8 mm to DIN 179 for the matching drill
• Bore rounded on one side, giving a defined fitting direction in the jig

Applications

• Jig and fixture construction as well as tool making
• 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

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.