Collar drill bushing form B to DIN 172, bore 11.1 x 12 mm, collar 22 mm, case-hardening steel

When drilling in jigs, this bushing keeps the 11.1 mm tool on position. The guiding length is 12 mm, the press fit measures 18 mm in diameter and the collar 22 mm.

Benefits

• Guiding length of 12 mm, short design
• Ground guiding bore of 11.1 mm within the tolerances of DIN 172
• All-round collar of 22 mm diameter and 4.0 mm height acting as a stop
• Press fit of 18 mm outside diameter in the holder of the jig
• 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 12 mm, even with frequent tool changes.

Standard and material

The basis is DIN 172, form B, with a guiding bore of 11.1 mm. 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 afterwards.