The Veritas hold-down can clamp workpieces to a bench or anywhere a 3/4" hole can be drilled.
Exceptionally high clamping forces can be obtained with this hold-down for two reasons. First, with the arm free to pivot independently, all levered forces are exerted downward, without any losses due to horizontal slippage from the canting action of the hold-down post. Second, the fine barb-shaped grooves on the post resist upward forces, yet still allow easy entry into a hole. The long, low-profile arm is unobstructed at the clamping end, allowing good access to work from all sides. The 10" hold-down post gives you 8" of clamping capacity, matching the 8" throat capacity.
For use in holes where through travel is limited, a retrofit shorter hold-down post is available separately. At just 5-1/2" long, it provides about 4" of clamping capacity.
Used vertically in the top of a bench, or horizontally in a side skirt. Clamping forces are infinitely variable by tightening the clamping knob (machined brass) to any degree.
The arm is made from forged steel; the other components are steel, aluminum alloy and brass.