Drill bush DIN 179 form B, long type, bore 28 mm, length 56 mm, outside dia 42 mm

This drill bush guides tools of 28 mm diameter and keeps the drilling axis in position over the full length of 56 mm. The bore follows form B of DIN 179 and is therefore rounded on both sides.

Benefits

• Overall length of 56 mm in the long version of the range short, medium and long
• Guide bore of 28 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 42 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

Dimensions and design follow DIN 179. The material is special case-hardening steel, the hardness is 740 ± 80 HV 10, and the functional surfaces are ground.