Feature: Adjustable 3 gears, high, medium and low, different clamping force suitable for different working condition.Constructed of high quality aluminum alloy and stainless steel provides the hold fast with maximum durability and strength.Maximum clamping is 60mm, the clamping height can be adjusted according to the thickness of the board.Quick and easy clamping, the bench hold down clamp into your workbench dog hole, hold wood in place and then press the gear,easier clamping,reduce hand fatiqueUse with your workbench,works on workbenches 20~40mm thickness(maximum clamping 60mm),Drill a suitable vertical dog holes into your workbench top and your holdfast workbench into the hole.Maximum clamping: 60mmsize: 19mmMaterial: Metalcolour: as shownPackage Contents:2 sets x woodworking desktop clips2 x tenon2 x Desktop ClipOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.