Collar drill bushing form A to DIN 172, bore 14.9 x 28 mm, collar 26 mm, case-hardening steel

The collar drill bushing with a 14.9 mm bore comes in the medium series at 28 mm. Its case-hardening steel at 740 ± 80 HV 10 withstands contact with the cutting edge over large batches, and the 26 mm collar fixes its position.

Benefits

• Overall length 28 mm in the medium series
• Outside diameter 22 mm for the press fit in the drill plate
• Bore 14.9 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 26 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 28 mm, even with frequent tool changes.

Standard and material

The basis is DIN 172, form A, with a guiding bore of 14.9 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.