Adjustable Clamp Bench Hold Fast
3/4" (19mm) Hole Bench Top Diameter x Bar Length x Reach
This Clamping Bench Hold Fast features a star knob which can be tightened for variable clamping pressure. 19mm x 250mm steel post bar and a forged steel clamp arm reach 200mm,
Place it in a 3/4" hole and whack with a mallet to lock. Hit the back of the clamp to release.