Cylindrical drill bush DIN 179 form B, bore 12 mm, length 25 mm, outside dia 18 mm, ground

For repeatable holes of 12 mm diameter this bush is seated in the drill plate by its ground outside diameter of 18 mm. The drill stays guided across 25 mm of length, and the bore is rounded on both sides.

Benefits

• Guide bore of 12 mm to DIN 179 for the matching tool
• Outside diameter of 18 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
• Special case-hardening steel, hardened to 740 ± 80 HV 10 and ground

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 bush is made to DIN 179 in form B, and the bore is rounded on both sides. The material is special case-hardening steel, hardened to 740 ± 80 HV 10 and ground.