A versatile set designed for re-chucking of bowls to remove chuck marks, add decoration or to re-shape the bottoms of bowls that have already been turned.
Other Nova jaw sets can be fitted to the Cole Jaws making a combination jaw facility – expanding dovetail facility for mounting bowls/platters and a reverse dovetail for mounting footed bowls/platters.
Many advantages over traditional vacuum chucking. Customisable with false wooden jaws.
Standard Cole Jaws are suitable for lathes with minimum 12”/300mm swing diameter.
Mini Cole Jaws are suitable for lathes with a minimum 8”/203mm swing diameter.
Learn about the Nova 8" Cole Jaw Set
TIPS N TRICKS!
While traditionally these type of jaws are used in the compression mode – depending on the bowl shape, the jaws can be used to grip in either the contracting or expanding mode.
To ensure best grip, the bowl should have a positive or negative flair towards the edge of the bowl.
Try and avoid straight sided bowls where the grip will be less efficient. Best cutting technique is to have a cutting action with the chisel such that much of the force is directed towards the headstock, not across the face.
CUSTOMISING THE COLE JAW USING WOODEN JAWS
If larger or heavier bowls need to be re-chucked, then the customer can make their own customised wooden jaws.
These should be fastened onto each jaw segment using two screw positions. The customer should give careful consideration into the type of holding situation that is required before false wooden jaws are made, to ensure adequate gripping is acheived.
Jaw segments can be made from Medium Density Fibreboard (MDF)
Jaw Travel Range Table (SHOWING FOR BOTH 8″ AND 10″ VERSION)
Please note, Tolerance of +/-1mm on all measurements
* Measurements with stop-screw
** Recommended with Caution