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Nova 48291 Pro-Tek G3 Chuck with 2'' Jaws, 1''x 8 TPI Direct Thread

Powerful gripping on mini and midi lathes—new corrosion-resistant nickel plating, dovetailed serrated jaws, and durable 6-point star fasteners!

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$169.99 Each
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The Pro-Tek Nova G3 is well-suited for mini and midi lathes with up to a 16'' swing over the bed. A four-jaw, self-centering scroll chuck, it features high-powered gearing that delivers a tenacious hold. With its minimal body length, it maximizes your distance between centers, and reduces weight and stress on smaller lathe spindles. The Pro-Tek model features all the premium performance of its predecessor, plus numerous upgrades like a corrosion-resistant nickel plating, improved 50mm jaws with both a dovetail profile and serrations, and durable 6-point star fasteners. It's easy to close with just one hand using the included T-handled hex wrench. Includes a set of 2'' (50mm) jaws.

Note: This is a 1'' x 8TPI direct thread chuck. Be sure that the threading matches your lathe.


  • Premium nickel plating minimizes rust—ideal for turning green wood
  • Tough 50mm/2'' Pro-Tek Jaws feature both dovetail and serrated profiles for maximum gripping power
  • Dovetail profile pulls the blank into the chuck for firm seating, and holds both round and square blanks
  • Precision laser-etched jaw numbering allows ease of jaw and slide alignment, positioning and change out
  • Upgraded 6-point star fasteners withstand high torque with ease, offering better holding power and minimizing the risk of stripping
  • Jaw fastening wrench upgraded to T-handle (from hex wrench) for reduced stripping and enhanced comfort
  • Single-handed operation with included T-handled chuck key
  • Small, compact design minimizes load on small spindles and bearings
  • Precise, powerful hardened gear action with Tuff Lock™ technology
  • Safe Lock woodworm screw included for fast mounting of rough material
  • Free Nova microfiber workshop towel helps keep your chuck and jaws well maintained
  • Able to take all Nova accessory jaws. However, please note: the larger accessory jaws in the Nova line are not recommended for use on the Nova G3 Insert Chuck. For more information, see the offers for individual jaw sets

(1) Nova Pro-Tek G3 Chuck, 1''x 8 TPI Direct Thread
(1) Set of 2'' (50mm) Pro-Tek jaws
(8) 6-point star fasteners
(1) T-handle wrench
(1) Hex wrench
(1) Set of fibre washers
(1) Set screw
(1) Woodworm Screw
(1) Hard storage case
(1) Microfiber shop towel
(1) Instruction manual

More Information
Brand Nova
Manufacturer Part Number 48291
Weight 4.900000
Tech Spec
  • Recommended Lathe Swing: From 10'' to 16'' swing
  • Chuck Diameter: 88.5mm/3.45''
  • Chuck Height: 44mm/1.72''
  • Maximum Bowl Diameter: 310mm/12'' (using 50mm jaws)
  • Maximum Spigot Dimensions: 150mm/6'' length (using 50mm jaws)
  • Insert/Direct Thread: 1'' x 8TPI direct thread

Prop 65 WarningWARNING:
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
Prop 65 WarningWARNING:
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. For more information go to