Collar drill bushing form A to DIN 172, bore 17.5 x 28 mm, collar 30 mm, case-hardening steel

When drilling in jigs, this bushing keeps the 17.5 mm tool on position. The guiding length is 28 mm, the press fit measures 26 mm in diameter and the collar 30 mm.

Benefits

• Ground guiding bore of 17.5 mm within the tolerances of DIN 172
• Guiding length of 28 mm, medium design
• Press fit of 26 mm outside diameter in the holder of the jig
• All-round collar of 30 mm diameter and 4.0 mm height acting as a stop
• Hardened case-hardening steel at 740 ± 80 HV 10 with a ground surface
• Form A design of DIN 172 with the bore rounded on one side, on the side of the collar

Applications

The bushing is used in drilling jigs in tool and fixture making, in series production and in repair work where holes have to be placed repeatably.

Standard and material

The basis is DIN 172, form A, with a guiding bore of 17.5 mm. In form A the bore is rounded only on the side of the collar. The material is case-hardening steel, hardened to 740 ± 80 HV 10 and ground afterwards.