Collar drill bushing DIN 172 form A, bore 34.5 mm, length 25 mm, collar 52 mm, hardened steel

With a bore of 34.5 mm and an overall length of 25 mm, this bushing keeps the tool on track inside the drilling jig. The collar of 52 mm diameter and 5.0 mm height bears on the drill plate and secures the bushing against axial slipping.

Benefits

• Guiding length of 25 mm, short design
• Ground guiding bore of 34.5 mm within the tolerances of DIN 172
• All-round collar of 52 mm diameter and 5.0 mm height acting as a stop
• Press fit of 48 mm outside diameter in the holder of the jig
• 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

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.