Aluminum Right Angle Clamp – Quick Grip Clamp for Woodworking & Welding General Specifications (Common to All Three Models) Shaft Diameter: 8×16 mm Throat Depth: 65 mm Clamping Force: 200 kg Materials: Aluminum Alloy, Carbon Steel, Stainless Steel, Nylon Accessories: 1 wrench, 4 non-slip pads Packaging: Inner box lined with foam, 2 pieces per box Counter-support Starting Range: 18 mm 1. 6-inch (Small) Clamping Range: 0–150 mm Counter-support Range: 18–268 mm Total Length: 270 mm Net Weight per Unit: 0.7 kg Weight per Box: 1.7 kg Inner Box Dimensions: 26×7×45 cm 2. 12-inch (Medium) Clamping Range: 0–300 mm Counter-support Range: 18–420 mm Total Length: 420 mm Net Weight per Unit: 0.84 kg Box Weight: 2.1 kg Inner box dimensions: 26 × 7 × 45 cm 3. 20-inch, Large Clamping range: 0–500 mm Back-support range: 18–620 mm Total length: 620 mm Net weight per item: 1.1 kg Net weight per box: 2.4 kg Inner box dimensions: 26 × 7 × 65 cm