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ROUND JAWS - 3/32" x 90° Serrations

FOR USE ON: SMW Autoblok, Forkardt, Rohm, Pratt Burnerd & Other Chucks
  • 3/32" x 90° serrations
  • Round Jaws allow for complete gripping of workpiece
  • Oversized jaws available
  • Ideal for thin-walled or irregular shaped workpieces.
  • Can be machined to fit workpiece
  • Max. length of serrations: 5.75"
  • Special "J" dimensions available
  • Available in Aluminum
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Critical Dimensions ALUMINUM
Group
No
Chuck Size Groove Width
G
Screw Size
E
Hole
Space
D
Hole to Front
J
Middle
Hole to
Front Jm
Pie
Dia
B
Height Inch
A
No.
of
Holes
Industry
Ref #
Part
Number
I3-100-138 16 to 20 1.004 (25.5mm) 20mm 1.380 (35mm) 3.500 4.880 16 2.500 3 - RFK-16250A
4.000 3 - RFK-16400A
21 2.500 3 - 21-RFK-16250A
I3-100-156 16 to 20 1.000 (25.5mm) 3/4 1.562 (39.5mm) 3.250 4.812 16 2.500 3 - RSM-16250A
4.000 3 - RSM-16400A
I3-100-156M 16 1.004 (25.5mm) 20mm 1.562 (39.5mm) 3.313 4.875 15 3.000 3 SMW15-16P 15-RSM-16301A4
4.000 3 SMW15-16P1 15-RSM-16401A4
18 3.000 3 SMW18-16P 18-RSM-16301A4
4.000 3 SMW18-16P1 18-RSM-16401A4
20 1.004 (25.5mm) 20mm 1.562 (39.5mm) 4.938 6.500 18 3.000 3 SMW18-20P 18-RSM-20301A
4.000 3 SMW18-20P1 18-RSM-20401A
21 3.000 3 SMW21-20P 21-RSM-20301A
4.000 3 SMW21-20P1 21-RSM-20401A
25 1.004 (25.5mm) 20mm 1.562 (39.5mm) 6.313 7.875 24 3.000 3 SMW24-25P 24-RSM-25301A
4.000 3 SMW24-25P1 24-RSM-25401A
28 3.000 3 SMW28-25P 28-RSM-25301A
4.000 3 SMW28-25P1 28-RSM-25401A
I3-118-250 25 to 32 1.181 (30mm) 1.00" 2.500 (63.5mm) 4.250 - 21 4.000 2 - RSM-21400A
- 24 4.000 2 - RSM-24400A

Round Jaw Material: ALUMINUM-6061-T6 Bar Stock, CAST IRON-Gray, STEEL-1018. 18" & Larger- Aluminum Casting T6
* denotes non-stock item. Please allow 1 week manufacturing time.