Product Details Used for holding and securing rings in various positions while being worked upon. Made from wood, this clamp is sectioned in quarters with a tapered core running through the centre. Unwind the wing nut anti-clockwise to loosen the centre metal taper; mount the ring on the opposing end. To secure, turn the wing nut clockwise and the taper will tighten. This expands the four wooden jaws putting pressure inside the ring and hence locking, ready to be worked on. Will hold from sizes H to M Wooden jaws Wing nut winder Overall length 145mm
