Collar drill bushing DIN 172 form A, bore 4.6 mm, length 16 mm, collar 11 mm, hardened steel

Designed for tools of 4.6 mm diameter, this bushing seats in the fixture with an outside diameter of 8 mm. The overall length of 16 mm in the long series sets the guiding length, and the 11 mm collar secures the bushing axially.

Benefits

• Bore 4.6 mm, ground and dimensionally accurate to DIN 172
• Overall length 16 mm in the long series
• Outside diameter 8 mm for a press fit in the drill plate
• Collar 11 mm with 2.5 mm height for axial location
• Case-hardening steel hardened to 740 ± 80 HV 10
• Form A to DIN 172 with the bore rounded on the collar side, so the tool enters easily

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 design complies with DIN 172 form A, in which the bore is rounded only on the collar side. The material is case-hardening steel, hardened to 740 ± 80 HV 10 and ground.