Arrow Fastener 33424 Medium Duty Bar Clamp/Spreader, 24 InchHighlights: Size: 24 Inch Medium duty EZ hold Bar clamp allows rapid & easy clamping Can be converted to a spreader clamp Contoured comfort grip & quick release lever Deep reach pads help protect work 24 Inch open capacity 30 1 2 Inch spread capacity 3 1 3 Inch throat depth 300 Lb clamp force Exclusive feature lets you join two clamps together to create a clamp with double the opening capacity of a single clamp