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NOVA
Step Jaw Set
Code: JS75DT
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 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:
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42mm (1.65”)
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50mm (2”)
-
64mm (2.5”)
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Features standard on all NOVA Jaws:
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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.
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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.
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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
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