Macsim 4mm x 25mm hex insert bit made from S2 industrial steel for high torque strength and durability. Precision tip improves fit and reduces cam-out on hex fasteners. Standard 1/4″ hex drive suits impact drivers and screwdrivers. Ideal for cabinetry, assembly and general fastening tasks. Maintain straight alignment, correct speed and pressure to prolong bit life and protect fasteners. Store clean and dry to prevent corrosion.

$4.15

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