Our most popular base!

• Create a versatile work holding system by selecting two or three different heads!
• Single control knob and exclusive “split-ball” lock head firmly in place.
• Base features 4.3125” (109.5 mm) bolt circle countersunk for three 0.25” (6.3 mm) flathead screws (not included).
• Height: 3.75” (95.2 mm). Weight: 1.4 lbs. (0.6 kg).