Drill bush DIN 179 form B, short type, bore 12.2 mm, length 16 mm, outside dia 22 mm

This drill bush guides tools of 12.2 mm diameter and keeps the drilling axis in position over the full length of 16 mm. The bore follows form B of DIN 179 and is therefore rounded on both sides.

Benefits

• Special case-hardening steel, hardened to 740 ± 80 HV 10 and ground
• Guide bore of 12.2 mm to DIN 179 for the matching tool
• Outside diameter of 22 mm as a ground seat in the drill plate
• Bore rounded on both sides to form B, so the bush can be fitted either way round
• 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 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.