Drill bush DIN 179 form B, bore 37 mm, length 67 mm, outside dia 55 mm, hardened steel

During drilling in the jig this bush takes over the guidance of the 37 mm tool. The overall length of 67 mm sets the bearing surface of the drill in the long version, and the bore matches form B of DIN 179.

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 37 mm to DIN 179 for the matching tool
• Overall length of 67 mm in the long version of the range short, medium and long
• Wall thickness of 9 mm between the 37 mm bore and the 55 mm seat

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 B. Case-hardening steel at 740 ± 80 HV 10 together with ground surfaces determines the service life of the bush.