MAXPOWER 4-pieces Light Duty F Clamps Set, Jaw Opening 4" 8" 8" 12", Clamping force 580 lbs and1200 lbs, Full Steel Welding Tool Kit

4 inch F Clamps, throat depth 2.4", rail size 7/16" x 3/16" (10 x 5 mm), clamping force 260kg / 580lbs | 8 inch F Clamps, throat depth 2.4", rail size 7/16" x 3/16" (10 x 5 mm), clamping force 260kg / 580lbs | 8 inch F Clamps, throat depth 4.7", rail size 7/8" x 27/64" (22 x 10.6 mm), clamping force 550kg / 1200lbs | 12 inch F Clamps, throat depth 4.7", rail size 7/8" x 27/64" (22 x 10.6 mm), clamping force 550kg / 1200lbs | F clamp with swivel pad centers on work piece for a sturdy hold, full body steel bar clamps, black oxide spindle resists wear and tear while impeding rust | MAXPOWER Light duty F clamps set, included various commons size, a complete f clamps kit for professional welder