Collar drill bushing DIN 172 form A, bore 17 mm, length 16 mm, collar 30 mm, hardened steel

This collar drill bushing guides drills and reamers of 17 mm diameter over an overall length of 16 mm. The 26 mm outside diameter sits in the press fit of the drill plate, while the 30 mm collar rests on the plate surface and takes up the feed force.

Benefits

• Overall length 16 mm in the short series
• Outside diameter 26 mm for the press fit in the drill plate
• Bore 17 mm, ground and dimensionally accurate to DIN 172
• Form A to DIN 172, the bore is rounded on the collar side so the tool enters easily
• Collar 30 mm with 4.0 mm height for axial location
• Case-hardening steel, hardened to 740 ± 80 HV 10 and ground

Applications

It suits drilling jigs, drill templates and assembly fixtures in which the tool has to be guided safely over 16 mm, even with frequent tool changes.

Standard and material

The basis is DIN 172, form A, with a guiding bore of 17 mm. In form A the bore is rounded only on the side of the collar. The material is case-hardening steel, hardened to 740 ± 80 HV 10 and ground afterwards.