Cylindrical drill bush DIN 179 form B, bore 4.8 mm, length 8 mm, outside dia 8 mm, ground

With a guide bore of 4.8 mm this bush to DIN 179 accepts the drill and supports it over 8 mm of length. In form B the bore is rounded on both sides, and the seat in the jig measures 8 mm.

Benefits

• Bore rounded on both sides to form B, so the bush can be fitted either way round
• Overall length of 8 mm in the short version of the range short, medium and long
• Guide bore of 4.8 mm to DIN 179 for the matching tool
• Dimensions to DIN 179, so existing bushes can be replaced size for size
• Outside diameter of 8 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

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.