Drill bush DIN 179 form A, bore 31 mm, length 45 mm, outside dia 48 mm, hardened steel

With a guide bore of 31 mm this bush to DIN 179 accepts the drill and supports it over 45 mm of length. In form A the bore is rounded on one side, and the seat in the jig measures 48 mm.

Benefits

• Bore rounded on one side to form A, with a fixed fitting direction in the jig
• Guide bore of 31 mm to DIN 179 for the matching tool
• Special case-hardening steel, hardened to 740 ± 80 HV 10 and ground
• Outside diameter of 48 mm as a ground seat in the drill plate
• Guide length of about 1.5 drill diameters at 45 mm of length

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 A. Case-hardening steel at 740 ± 80 HV 10 together with ground surfaces determines the service life of the bush.