Collar drill bushing DIN 172 form B, bore 1.9 mm, length 9 mm, collar 8 mm, hardened steel

The collar drill bushing with a 1.9 mm bore comes in the medium series at 9 mm. Its case-hardening steel at 740 ± 80 HV 10 withstands contact with the cutting edge over large batches, and the 8 mm collar fixes its position.

Benefits

• Guiding length of 9 mm, medium design
• Press fit of 5 mm outside diameter in the holder of the jig
• Ground guiding bore of 1.9 mm within the tolerances of DIN 172
• Form B design of DIN 172 with the bore rounded on both sides, also for a reversed fit
• All-round collar of 8 mm diameter and 2.0 mm height acting as a stop
• Hardened case-hardening steel at 740 ± 80 HV 10 with a ground surface

Applications

It is used wherever holes of 1.9 mm have to be produced without centre punching and without wandering, for example in jigs for series parts, in assembly gauges or in prototype work.

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.