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- 2 pcs 4" Steel Ground Master Jaws
- Includes 3/8-16 LHCS and wrench
- 4140 Ground Prehard Tool Steel
- Ground flat and parallel within 0.0002"
- Accepts SMARTstop™ jaw sets
- Accepts all 4.5" accessories
- Accepts four extruded profiles that can be cut to any length
- Front and side jaw loading