Cylindrical drill bush DIN 179 form B, bore 4.6 mm, length 12 mm, outside dia 8 mm

During drilling in the jig this bush takes over the guidance of the 4.6 mm tool. The overall length of 12 mm sets the bearing surface of the drill in the medium version, and the bore matches form B of DIN 179.

Benefits

• Bore rounded on both sides to form B, so the bush can be fitted either way round
• Guide bore of 4.6 mm to DIN 179 for the matching tool
• Special case-hardening steel, hardened to 740 ± 80 HV 10 and ground
• Outside diameter of 8 mm as a ground seat in the drill plate
• Guide length of about 2.6 drill diameters at 12 mm of length

Applications

• Hole patterns in assembly jigs and equipment frames
• Workshop production with changing workpieces
• Redrilling and opening up holes on existing jigs
• Pattern making and mould making

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.