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The GIBRALTAR 40109G is a two-piece steel step block designed to provide adjustable height support during machining, clamping, and workholding operations. It adjusts from 2.5 inches to 6 inches in height, making it suitable for a range of setups where workpiece elevation must be precisely staged. The step block is manufactured from steel for durability under clamping load. With a 1/16-inch step depth and 1/8-inch step elevation per step, it allows incremental positioning adjustments. Licensed machinists, toolroom technicians, and setup personnel are the typical users of this component.
The GIBRALTAR 40109G step block is used in machine shop and industrial environments where workpieces or fixtures need to be elevated and supported at a consistent, stable height. It is suited for milling, drilling, and boring operations where a T-slot clamp kit or step clamp set is in use. The 2-inch width and 3.75-inch base depth provide a stable footprint on machine tables and fixture plates. The two-piece construction allows the upper and lower halves to be staggered for height adjustment without additional tools.
Designed as an OEM-style replacement or supplemental component for standard step clamp and T-slot clamping setups used in general machining applications.
Step blocks are installed by qualified machinists or toolroom personnel as part of a workholding setup. Ensure the machine table and step block mating surfaces are clean and free of chips before seating the block. The two-piece halves should be fully engaged on the selected step before applying clamping force. Do not exceed the clamping load rating of the associated clamp hardware.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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