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Nova G3 Lathe Chuck

Nova G3 Lathe Chuck

Price : Starting at $149.99
Out of stock - more expected in 1-2 weeks.

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Detailed Description

Nova G3 Lathe Chuck

Teknatool's G3 4-jaw scroll chuck incorporates the latest in chucking technology. Its 3-1/2" steel body is nickel plated for long life. Its quick-ratio scroll mechanism is driven by a T-handle chuck key. It accepts all of the same jaws as it's bigger brother - Supernova2, but is designed for smaller projects. We recommend that you use the G3 for projects 14" in diameter or smaller.

For all spindle sizes, a threaded insert is REQUIRED to adapt the chuck to fit your lathe. See the chart below for the sizes available. If you do not see your size call us for assistance. If you choose to order this chuck without an insert and you do not already have an insert, it will not work.

The G3 chuck comes complete with 2" jaws, a woodworm chuck screw and a T-handle chuck key.

Threaded Inserts
Size Lathes
5/8" Smooth Shopsmith
3/4"-16tpi RH Sears, Record, Rigid
1"-8tpi RH/LH Some Delta, Jet, General, Rikon and many others
1"-12tpi RH Grizzly
1-1/4"-8tpi RH/LH Some Delta, General, Powermatic, Jet, Rikon
Blank Insert This insert is for lathes with an unusual spindle size or thread pattern. You will need to have it custom threaded at a machine shop in your area.
No Insert The SuperNova2 REQUIRES an insert to operate. Only order your chuck without an insert if you already have one.
This is a general guide.
If you are not certain which is the correct thread, check your lathe manual or call us.


  • 1", 2" and 3" Bowl Jaws and 4" & 5" Jumbo Jaws are smooth steel jaws for use in dovetail recesses and spigots.
  • Pin Jaws are designed to hold workpieces by gripping inside pre-drilled holes. In addition, they have a small dovetail for gripping small workpieces.
  • Step Jaws are designed primarily for external chucking. The three smooth steps allow you to grip a broad size range with a single set of jaws.
  • Spigot Jaws are smooth on the outside for gripping in dovetailed recesses, but serrated on the inside for secure external chucking of larger workpieces.
  • Long Nose Jaws have similar capacity to 2" jaws, but when chucking internally, they hold the workpiece about 1-1/2" away from the chuck for better tool access. When chucking externally, long nose jaws are immensely powerful serrated spigot jaws—able to hold spigots up to 2" long.
  • Cole Jaws are large, flat aluminum plates. Rubber bumpers serve as padded jaws for positive, non-marring holding of nearly finished turnings. They hold objects too large for any other chuck, and they're especially useful for reverse chucking bowls. Each set comes with 8 rubber bumpers sufficient for almost any need. Mini Cole Jaws are designed especially to work on mini lathes with swing as little as 10".
  • The Chuck Spur Center mounts in the chuck and allows you to turn between centers without removing the chuck.
  • The thin profile 1-1/2" Insert Spanner, though not required, makes quick work of removing threaded inserts from the chuck body.

  Description External Grip Internal Grip
301522 1" Jaws 3/8" - 1" 15/16" - 1-13/16"
301523 2" Jaws 1-3/4" - 2-1/2" 2" - 2-3/4"
301553 1-3/8" Bowl Jaws 5/16" - 1-1/4" 1-1/2" - 2-5/16"
301532 3" Bowl Jaws 1-13/16" - 2-1/2" 3-1/8" - 4"
301525 4" Jumbo Jaws 3-1/16" - 3-7/8" 3-13/16" - 4-5/8"
301533 5" Jumbo Jaws 4-3/16" - 5" 4-7/8" - 5-7/8"
301528 Pin Jaws 7/16" - 1" 1" - 2"
301531 Long Nose Jaws 1-9/16" - 2-3/8" 1-11/16" - 2-13/16"
301526 1-3/8" Spigot Jaws 1-3/16" - 2" Small Step 2-1/8" - 2-3/4"
Large Step 3" - 3-3/4"
301527 1-3/4" Spigot Jaws 1-1/2" - 2-3/8" Small Step 2-1/8" - 2-3/4"
Large Step 3" - 3-3/4"
301524 3" Step Jaws 1-5/8" - 2-3/8" 3" - 3-7/8"
301530 Mini Cole Jaws 8" 4-1/4"
301529 Cole Jaws 10" 4-1/4"
301549 Soft Jaws Variable Variable

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