Drill bush DIN 179 form A, bore 7.1 mm, length 16 mm, outside dia 12 mm, hardened steel

During drilling in the jig this bush takes over the guidance of the 7.1 mm tool. The overall length of 16 mm sets the bearing surface of the drill in the medium version, and the bore matches form A of DIN 179.

Benefits

• Guide bore of 7.1 mm to DIN 179 for the matching tool
• Outside diameter of 12 mm as a ground seat in the drill plate
• Overall length of 16 mm in the medium version of the range short, medium and long
• Special case-hardening steel, hardened to 740 ± 80 HV 10 and ground
• Bore rounded on one side to form A, with a fixed fitting direction in the jig

Applications

• Series drilling on jigs with high piece numbers
• Drill templates for assembly work on site
• Guiding twist drills and reamers in the jig
• Repair of worn drill plates by replacement of the same size

Standard and material

The design corresponds to DIN 179, form A. Case-hardening steel at 740 ± 80 HV 10 together with ground surfaces determines the service life of the bush.