Collar drill bushing form B to DIN 172, bore 5.6 x 20 mm, collar 13 mm, case-hardening steel

This bushing of the long series guides drills of 5.6 mm diameter over 20 mm. The collar with 3.0 mm height stops the bushing from being pushed down through the holder during machining and sets its height clearly.

Benefits

• Overall length 20 mm in the long series
• Outside diameter 10 mm for the press fit in the drill plate
• Bore 5.6 mm, ground and dimensionally accurate to DIN 172
• Form B to DIN 172, the bore is rounded on both sides and can be loaded from either end
• Collar 13 mm with 3.0 mm height for axial location
• Case-hardening steel, hardened to 740 ± 80 HV 10 and ground

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 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.