Workbench Dog Hole Clamp Woodworking Desktop Fixed Clip Aluminum Alloy Quick Acting Clamp for 19mm/20mm Hold Hole Dog Down Tool Adjustable third gear, high, medium and low third gear, different clamping force, suitable for different working conditions. Round bar with a diameter of 19mm/20mm and a maximum clamping height of 155mm is suitable for most carpentry work. Two sizes to chose: 19MM, 20MM. Quick Release Clamp Workbench Dog Holes Quick Acting Hold Down Clamp A... - Vicedeal Adjustable 3-speed Hold Down Available for 19mm or 20mm hole sizes. Wedge mechanism for fixed anchoring. It is firm (horizontally or vertically) in material up to 16mm thin, provided that... Allow you to quickly secure a wide variety of auxiliary fences to your existing table saw, band saw, and router table fences. A perfect carpentry tool, perfect gift for your daddy and brother. Gupbes Manual Adjustable Compression , Jadpes Adjustable Press Plate Widely in many woodworking & metalworking applications for work holding, positioning, and fixturing.