JORGENSEN 150 mm Woodworking Clamps 4-Pack, Splicable to 400 mm Ratchet Bar Clamps, Quick Release Clamp Set, 290 mm Spreader, One Handed Wood Clamp, Max 68 kg Load Limit150 mm Applicable into 400 mm: JORGENSEN Unique Patented Technology lets you join 2 150 mm woodworking clamps together to create a 400 mm clamp, which greatly increases the clamping range, more than double the opening capacity of a single clamp. Without the need to have a large clamp for woodwork, innovative and convenient 2 In 1 Ratchet Bar Clamps & Spreader: Max Jaw Capacity: 150 mm for clamps & 290 mm for spread. Throat Depth: 62 mm from the bar