Drill bush DIN 179 form B, bore 19.5 mm, length 20 mm, outside dia 30 mm, hardened steel

A drill of 19.5 mm diameter runs guided through 20 mm of this bush and meets the hole at the intended point. The design follows DIN 179, form B, and the bore is rounded on both sides.

Benefits

• Bore rounded on both sides to form B, so the bush can be fitted either way round
• Overall length of 20 mm in the short version of the range short, medium and long
• Guide bore of 19.5 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

• Fixed drill plates and hinged drilling jigs
• One-off and small batch production in mechanical engineering
• Drilling fitted holes on assemblies with a fixed hole position
• Inspection and marking templates in assembly

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.