Machine table clamps secure workpieces to holes and slots in worktables. Machine clamping kits include a selection of clamps, hardware, tools, and accessories to secure workpieces to a milling machine or work table. Setup clamps position and hold workpieces during production and assembly operations. Step blocks support one end of the clamp to provide even clamping pressure. Toggle pads pivot to provide even clamping on irregular surfaces. T-slot clamps slide smoothly along a T-slot track for clamping differently sized workpieces.