Feature: Product length, width and height 100x30x110mm Material: aluminum alloy + stainless steel Maximum clamping: 60mm 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 clamps 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,slide the bench hold down clamp into your workbench dog hole, hold wood in place and then press the gear,easier clamping,reduce hand fatique Use with your workbench,works best on workbenches 20~40mm thickness(maximum clamping 60mm),Drill a suitable vertical dog holes into your workbench top and slide your holdfast workbench clamps into the hole. Workbench Stop Tenon: Ideal for wood working and general clamping applications.The design of the independent innovation, specially used for plate clamping stable, flexible and convenient sheet you deal with all kinds of operation is a good helpers Size: two commonly used sizes for your choose 20mm/19mm,Suitable for table holes with a diameter of 20mm/0.79inches or 19mm/0.75inch. Material: mainly made of stainless steel and brass, CNA Precision Machining, will not break or rust ,can be used for many years. Easy to carry: It is compact and lightweight for easy carry, use, and storage. WIDE APPLICATION: The professional-grade woodworking vise is designed for the home craftsman. These vises are built to exact specifications for optimal performance. Woodworking Desktop Vise, Tenon Bar, Fixed Locking Accessories, Brass, Stainless Steel, Ratchet