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NOVA Step Jaw Set
Code: JS75DT
 

These step jaws are designed primarily to grip in the contracting mode, the base (foot) of footed bowls.

The step sizes provide optimum gripping for three foot sizes with minimal crush damaged wood. There is also an expanding dovetail made for alternative recess gripping of bowls. Can hold bowls up to 12" in diameter

Optimum Step sizes: 

  • 42mm (1.65”)

  • 50mm (2”)

  • 64mm (2.5”)

 

Features standard on all NOVA Jaws:

Full Cross Function:

Only NOVA Chucks give you the same jaw fixing system and same insert/adaptor system across all chuck models.

This means all accessory jaws in the range fit all the chucks in the range, including older chuck models*, giving you the ultimate flexibility. In buying a NOVA chuck, you can be confident that whether you want to move up or down the range, any accessories you have invested in will Fit.

 

Special Dovetail Profile:

NOVA chucks have been especially designed so the jaws will cut into the wood, grip firmly in the contraction mode and provide high tear out strength.

Some chucks use an engineering jaw profile (designed to hold a hard material like steel) or rounded profiles, which just crush the wood fibres without digging in and holding securely.

 

Jaw Travel Range Table  

Imperial (Inch)

Jaw Set & Chuck Suitability Expanding Action Specifications Contracting Action Specifications
Jaw Set Suitable Chuck Square Stock Spigot Mode
Min Max Min Max Min Max
STEP JAW Precision Midi* Not Recommended Not Recommended Not Recommended
Nova G3 Step 1 Not Applicable 1.181 2.008 1.634 2.461
Nova G3 Step 2 Not Applicable 1.417 2.244 1.988 2.815
Nova G3 Step 3 3.051 3.839 1.772 2.598 2.500 3.287
SN2 Step1 Not Applicable 1.181 2.008 1.634 2.461
SN2 Step2 Not Applicable 1.417 2.244 1.988 2.815
SN2 Step3 3.051 3.839 1.772 2.598 2.500 3.287
Titan Step1 Not Applicable 1.181 2.402 1.634 2.894
Titan Step2 Not Applicable 1.417 2.638 1.988 3.209
Titan Step3 3.051 4.272 1.772 2.992 2.500 3.681

Metric (mm)

Jaw Set & Chuck Suitability Expanding Action Specifications Contracting Action Specifications
Jaw Set Suitable Chuck Square Stock Spigot Mode
Min Max Min Max Min Max
STEP JAW Precision Midi* Not Recommended Not Recommended Not Recommended
Nova G3 Step1 Not Applicable 30 51 41.5 62.5
Nova G3 Step2 Not Applicable 36 57 50.5 71.5
Nova G3 Step3 77.5 97.5 45 66 63.5 83.5
SN2 Step 1 Not Applicable 30 51 41.5 62.5
SN2 Step 2 Not Applicable 36 57 50.5 71.5
SN2 Step 3 77.5 97.5 45 66 63.5 83.5
Titan Step1 Not Applicable 30 61 41.5 73.5
Titan Step2 Not Applicable 36 67 50.5 81.5
Titan Step3 77.5 108.5 45 76 63.5 93.5

Please note, Tolerance of +/-1mm on all measurements

* Measurements with stop-screw

** Recommended with Caution