These extended pin jaws were designed for our laser marking customers who need to engrave parts up to 6″ (153mm) OD and as small as .66″ (16.7mm) ID, using our 3-jaw chucks manufactured after 2014*. The top jaws have four pinhole locations that hold 3/16″ hard-steel dowel pins (not included) and attach to the master jaws with a socket head cap screw (not included).
These jaws are not designed for machining parts or other uses that require more than finger tight closing pressure to hold the part in the chuck. Round parts can be held from the inside or outside with just finger-tight grip of the pins while the outside is laser marked. The jaws will work in any of our 3-Jaw Chucks.
*NOTE: Chucks manufactured prior to 2014 will need to have each jaw custom ground to fit. Either send your chuck in or measure the width of each jaw with micrometers. Then send a list of each jaw width (A, B, and C jaws).
Always wear safety glasses when operating machine tools.
Laser Engraving with Sherline “Pin Jaws”
We do not charge a flat rate for shipping because of the variations in weight for our products. Instead we charge you what the shipping company charges us. Our website uses a shipping calculator based on the daily rates for USPS and UPS based on the weight and destination of the shipment. You can also have us use your UPS/FedEx account number to charge your shipping to. Just enter it in the appropriate box on the checkout page.
Domestic orders are shipped Monday – Friday. Expedited orders must be placed by 9 am PST to ship the same day.
Orders shipping ground have a processing time of 7 working days for domestic orders and 14 working days for international orders. Click here for more information on our shipping and order policies.
Most merchandise can be returned within 30 day of the purchase date. A refund will be issued to the original form of payment at the original selling price. View our complete return policy and/or start your return online here.