Home All Miscellaneous NOVA CHUCK INSERT/ADAPTOR 7/8″ 12TPI LH UN (SKU I8NS)


Adapt your Insert Type NOVA Chuck to a 7/8″ 12TPI LH UN lathe. Allows you to keep the same chuck and accessories if you change your lathe. You only need to change the insert/adaptor. The internal thread is 7/8″ 12TPI LH UN and the external thread matches the NOVA insert type chucks to simply screw in. Then your NOVA insert type chuck is ready to attach to your 7/8″ 12TPI LH UN threaded lathe spindle. NOVA Insert Type Chucks include: G3 (SKU 48202) and SuperNOVA2 (23055). Use only genuine NOVA accessories and parts with your NOVA chucks.

Insert/Adaptor Chart

Safety Advisory! Only use authentic NOVA accessories on your NOVA chuck. Using non genuine NOVA and copies of accessories could lead to operation and safety issues and will void our market leading warranty. NOVA accessories are designed for use only on NOVA Chucks. Do not use on any other chuck.

SKU: I8NS Tags: , , , ,

Product Description

  • Internal Thread is 7/8″ 12TPI UN, to fit all 7/8″ 12TPI LH UN lathes
  • Precision machined from a solid billet 1045 High Tensile Steel
  • Fits all NOVA Insert Type Chucks for maximum flexibility and adaptability
  • Quickly and inexpensively adapt your NOVA chuck to almost any lathe depending on insert thread size.
  • 6-Year Full Replacement Warranty


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California Residents Proposition 65
WARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection.

WARNING: This product can expose you to chemicals ​(Rust Prevention Oil) ​which are known to the State of California to cause cancer​. ​Always wash your hands after unpacking the product for first use and use in a well ventilated area. Dispose of packaging bags thoughtfully.

For more information go to: P65Warnings.ca.gov