Drill bush DIN 179 form B, bore 21 mm, length 45 mm, outside dia 30 mm, hardened steel

Made of hardened special case-hardening steel, this bush accepts drills of 21 mm and holds them on axis over 45 mm of length. The outside diameter of 30 mm forms the ground seat, and the bore is rounded on both sides to DIN 179 form B.

Benefits

• Bore rounded on both sides to form B, so the bush can be fitted either way round
• Overall length of 45 mm in the long version of the range short, medium and long
• Guide bore of 21 mm to DIN 179 for the matching tool
• Dimensions to DIN 179, so existing bushes can be replaced size for size
• Outside diameter of 30 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 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.