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The IRWIN 92005 is a No. 1 Phillips insert bit designed for use with 1/4-inch hex drive power tools and manual bit holders. Machined from S2 steel, this bit measures 1/4 inch in diameter and 1 inch in length, making it a compact option suited to tight-clearance fastening work. S2 steel provides high torsional strength and wear resistance, which extends service life under the repeated torque loads common in production assembly, mechanical service, and light construction tasks. Licensed tradespeople and field technicians rely on insert bits of this type for cordless drill-drivers and impact-ready bit holders where quick swaps are routine.
This insert bit is appropriate for residential and light commercial applications wherever No. 1 Phillips fasteners are encountered. Typical use cases include electrical panel work involving small terminal screws, HVAC equipment assembly and service, plumbing fixture installation, and general mechanical fastening. The 1-inch length fits standard bit holders and magnetic bit tips without extension. Sold individually with a minimum order quantity of 25 pieces, this bit is well-suited for stocking service vehicles and shop tool stations.
Designed as a standard 1/4-inch hex insert bit compatible with 1/4-inch hex drive bit holders, magnetic bit tips, and quick-change adapters used with cordless drill-drivers and screwdrivers.
Insert bits should be seated fully into the bit holder or magnetic tip before applying torque. Inspect the bit tip for wear or rounding before each use, as a worn Phillips tip increases the risk of cam-out and fastener damage. No special tools or trade licensing are required for bit replacement, but always ensure the power tool is powered off or the battery is removed before changing bits.
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