Collar drill bushing form B to DIN 172, bore 2.5 x 6 mm, collar 8 mm, case-hardening steel

Made for holes of 2.5 mm, this bushing guides the tool over 6 mm. The short series combines a press fit of 5 mm outside diameter with a 8 mm collar that holds the bushing in the plate.

Benefits

• Guiding length of 6 mm, short design
• Ground guiding bore of 2.5 mm within the tolerances of DIN 172
• All-round collar of 8 mm diameter and 2.0 mm height acting as a stop
• Press fit of 5 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

Technical data

Applications

It is typically fitted into the drill plates of jigs in mechanical engineering, contract manufacturing and mould making, where the same 2.5 mm hole is produced again and again in the same place.

Standard and material

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