Collar drill bushing DIN 172 form B, bore 7.9 mm, length 16 mm, collar 15 mm, hardened steel

With a bore of 7.9 mm and an overall length of 16 mm, this bushing keeps the tool on track inside the drilling jig. The collar of 15 mm diameter and 3.0 mm height bears on the drill plate and secures the bushing against axial slipping.

Benefits

• Ground guiding bore of 7.9 mm within the tolerances of DIN 172
• Guiding length of 16 mm, medium design
• Press fit of 12 mm outside diameter in the holder of the jig
• All-round collar of 15 mm diameter and 3.0 mm height acting as a stop
• Hardened case-hardening steel at 740 ± 80 HV 10 with a ground surface
• Form B design of DIN 172 with the bore rounded on both sides, also for a reversed fit

Applications

It suits drilling jigs, drill templates and assembly fixtures in which the tool has to be guided safely over 16 mm, even with frequent tool changes.

Standard and material

The design complies with DIN 172 form B. In form B the bore is rounded on the opposite side as well. The material is case-hardening steel, hardened to 740 ± 80 HV 10 and ground.