Collar drill bushing DIN 172 form A, bore 2.8 mm, length 8 mm, collar 9 mm, hardened steel

The collar drill bushing with a 2.8 mm bore comes in the short series at 8 mm. Its case-hardening steel at 740 ± 80 HV 10 withstands contact with the cutting edge over large batches, and the 9 mm collar fixes its position.

Benefits

• Ground guiding bore of 2.8 mm within the tolerances of DIN 172
• All-round collar of 9 mm diameter and 2.5 mm height acting as a stop
• Press fit of 6 mm outside diameter in the holder of the jig
• Hardened case-hardening steel at 740 ± 80 HV 10 with a ground surface
• Guiding length of 8 mm, short design
• 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

Dimensions and tolerances follow DIN 172 in form A. In form A the bore is rounded only on the side of the collar. The bushing is made of hardened and ground case-hardening steel with a hardness of 740 ± 80 HV 10.