Cylindrical drill bush DIN 179 form A, bore 12.2 mm, length 28 mm, outside dia 22 mm

Made of hardened special case-hardening steel, this bush accepts drills of 12.2 mm and holds them on axis over 28 mm of length. The outside diameter of 22 mm forms the ground seat, and the bore is rounded on one side to DIN 179 form A.

Benefits

• Bore rounded on one side to form A, with a fixed fitting direction in the jig
• Overall length of 28 mm in the medium version of the range short, medium and long
• Guide bore of 12.2 mm to DIN 179 for the matching tool
• Dimensions to DIN 179, so existing bushes can be replaced size for size
• Outside diameter of 22 mm as a ground seat in the drill plate

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 basis is DIN 179 for cylindrical drill bushes. Form A means a bore that is rounded on one side. Made of special case-hardening steel, hardened to 740 ± 80 HV 10 and ground.