Mandrel mild steel.
Taper-head screw low-carbon steel
Mandrel black oxidised.
Taper-head screw case-hardened.
The mandrel collet is ideal for finish machining turned parts. The diameter D can be turned or milled to suit the workpiece ID.
Low design - no interfering clamp straps.
Tightened using a hex socket wrench or hydraulics.
* D min. = smallest diameter to which "D" may be turned or milled.
Expand the mandrel approx. 0.1 mm over the relaxed diameter. Turn or mill the mandrel to suit the internal diameter of the workpiece. The base flange can be centred in a pocket or using dowel pins.
1) taper-head screw