Value Collection 400-3750 Step Block Clamp Set 52 Pc

Product Description

The VALUE COLLECTION 400-3750 is a 52-piece step block and clamp set designed for workholding applications on milling machines and machining centers equipped with T-slot tables. The set uses 5/8-11 stud thread and fits 3/4-inch T-slots, providing secure clamping for a wide range of workpiece sizes and heights. Step blocks measure 1 inch wide, and studs are available in six lengths — 3, 4, 5, 6, 7, and 8 inches — allowing the technician to match clamp height to the workpiece. The complete kit ships ready for immediate use on the shop floor. Total set weight is 29 pounds.

This set is suited for general-purpose workholding in job shops, production machining environments, and toolroom applications. It is used whenever a workpiece or fixture must be secured directly to a T-slot table for milling, drilling, or boring operations. The variety of stud lengths and the included step blocks allow the operator to accommodate parts of varying thickness without sourcing additional hardware. Licensed machinists and CNC setup technicians are the primary installers.

Key Features

• 52-piece complete set — no additional hardware required for standard T-slot table workholding
• 5/8-11 stud thread for high clamping force on heavy workpieces
• Fits 3/4-inch T-slots found on most standard milling machine tables
• Six stud lengths (3, 4, 5, 6, 7, and 8 inches) for flexible height adjustment
• Serrated end clamps provide positive grip and resist workpiece creep under cutting loads
• Includes coupling nuts, flange nuts, T-slot nuts, and step blocks for a self-contained setup

Compatibility

Designed for use with milling machine tables and machining center pallets that accept 3/4-inch T-slots with 5/8-11 threaded studs.

Installation Notes

Install and remove clamp sets with the machine spindle stopped and the table at a safe working position. Ensure T-slots are clean and free of chips before seating T-slot nuts, as debris can prevent full nut engagement and reduce clamping force. Torque studs and flange nuts evenly and confirm the workpiece is fully supported by step blocks before initiating a cut. Follow applicable shop safety procedures and machine manufacturer guidelines for workholding setup.