Drill bush DIN 179 form A, bore 6.3 mm, length 20 mm, outside dia 12 mm, case-hardened steel

This drill bush guides tools of 6.3 mm diameter and keeps the drill axis in position over the full length of 20 mm. The 12 mm seat and the 6.3 mm bore are ground, so the bush can be pressed into the fixture without any rework.

Benefits

• Bore to form A, that is rounded on one side
• Guide bore of 6.3 mm to DIN 179 for the matching drill
• Outside diameter of 12 mm as a ground seat in the jig plate
• Overall length of 20 mm in the long version of the three lengths short, medium and long
• Special case-hardening steel, hardened to 740 ± 80 HV 10 and ground
• Bore rounded on one side, giving a defined fitting direction in the jig

Applications

• Gauge making and prototype work in small batches
• Drilling jigs and drilling templates in series production
• 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

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.