Gibraltar 40105G Steel Step Block 2 Piece

Product Description

The GIBRALTAR 40105G is a two-piece steel step block designed to provide adjustable workholding support in machining and milling setups. It delivers a height adjustment range of 1.75 inches to 4 inches, allowing the operator to position the block precisely under a clamp or workpiece at the required elevation. Constructed from steel, this step block is built to handle the clamping forces typical of manual milling operations. Each step provides a 0.0625-inch step depth and a 0.125-inch step elevation, giving fine-grained positioning control. Licensed machinists and toolroom technicians are the primary installers and users of this component.

The 40105G step block is used in milling machine setups, drill press operations, and general workholding applications where a T-slot clamping kit is employed. It pairs with a step clamp and T-bolt to secure flat or irregular workpieces to a machine table. This block is suited for light to moderate clamping duty in a machine shop or toolroom environment. Its compact base depth of 2.53125 inches and 1.5-inch width make it appropriate for setups where table real estate is limited.

Key Features

• Height adjustable from 1.75 inches to 4 inches in two-piece configuration
• Steel construction for durability under clamping loads
• Step depth of 0.0625 inches and step elevation of 0.125 inches for precise positioning
• Base depth of 2.53125 inches and width of 1.5 inches for compact footprint
• Sold as a single set (package quantity of 1)

Compatibility

Designed as an OEM-style replacement and standard component for use with conventional step clamp and T-bolt workholding sets on milling machine tables and drill press tables.

Installation Notes

Step blocks are installed by machinists as part of a T-slot clamping system on machine tool tables. The machine spindle should be powered down and the table locked before adjusting or repositioning any workholding components. Pair this block with an appropriately rated step clamp and T-bolt; do not exceed the clamping load rating of the weakest component in the setup. Inspect the step surfaces for chips or debris before each use to ensure level support under the clamp.