Jaws by Lock Type
Jaws by Chuck Make

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Jaw Boring Tools


Jaw Boring Rings, Anti Backlash Rings for boring jaws, Jaw Boring Stars


Jaw Boring Rings, Stars, Antibacklash rings


Our Jaw Boring Tools can save you hours of unnecessary work and stress trying to find the right sized slug or spider in the shop when it comes time to bore a new set of jaws.



Our JAW BORING RINGS are very popular in CNC lathe shops. They are available for 6", 8", 10", 12" and 15" chucks. The way the ring works is simple and very effective. The ring has 3 eccentric slots in it. There are 3 pins which are attached to each of the eccentric slots. The pins slip into the counterbore of your jaws. The will sit pretty loose in the counterbore of the jaws. You then turn the ring (so the pins slide in the eccentric slots) till it is snug. Now close the chuck. The ring will prevent the jaws from fully closing. Your jaws are now ready to bore. Sound simple ? It is . The ring has been in use for over 20 years in thousands of shops - so it is a tried and tested product.



ANTI-BACKLASH rings are essentially premachined metal slugs that you can use to close a set of jaws on. They come in a nice set and are premachined and clearly marked. This way when you need a certain size to hold onto in order to bore a set of jaws - they are easily available to you.



JAW BORING STARS - are made for manual chucks. They are not made or intended for use in Hydraulic chucks (they will crush under chucking pressure). They are spiders and will help you easily obtain several diameters with one set of stars.