Drill bush DIN 179 form B, short type, bore 27.5 mm, length 25 mm, outside dia 42 mm

Where a hole of 27.5 mm has to sit in the same place on every part, this DIN 179 bush guides the tool. The short length of 25 mm supports the drill, and the bore is rounded on both sides.

Benefits

• Overall length of 25 mm in the short version of the range short, medium and long
• Guide bore of 27.5 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

• 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 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.