I need away to extend the inside clamping of a Thunder Laser Rotary. It comes with the standard 80mm 3in china lathe chuck which has a max inside clamp of 3in. I need to be able to clamp 3.75. does anyone know of a mfg that may make extended jaws or of a solution. I can add an adapter and a 4 in chuck but that will only get 3.53. 5in chusk is way to big.

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