Cylindrical drill bush DIN 179 form B, bore 30.5 mm, length 56 mm, outside dia 48 mm

Made of hardened special case-hardening steel, this bush accepts drills of 30.5 mm and holds them on axis over 56 mm of length. The outside diameter of 48 mm forms the ground seat, and the bore is rounded on both sides to DIN 179 form B.

Benefits

• Overall length of 56 mm in the long version of the range short, medium and long
• Guide bore of 30.5 mm to DIN 179 for the matching tool
• 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
• Outside diameter of 48 mm as a ground seat in the drill plate
• Dimensions to DIN 179, so existing bushes can be replaced size for size

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 B means a bore that is rounded on both sides. Made of special case-hardening steel, hardened to 740 ± 80 HV 10 and ground.