Drill bush DIN 179 form A, medium type, bore 1.1 mm, length 9 mm, outside dia 4 mm

The medium version of this DIN 179 bush guides drills of 1.1 mm over an overall length of 9 mm. In form A the bore is rounded on one side, which makes work in the jig easier.

Benefits

• Guide bore of 1.1 mm to DIN 179 for the matching tool
• Special case-hardening steel, hardened to 740 ± 80 HV 10 and ground
• Wall thickness of 1.4 mm between the 1.1 mm bore and the 4 mm seat
• Bore rounded on one side to form A, with a fixed fitting direction in the jig
• Overall length of 9 mm in the medium version of the range short, medium and long

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

Dimensions and design follow DIN 179. The material is special case-hardening steel, the hardness is 740 ± 80 HV 10, and the functional surfaces are ground.