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AM-2.5MM Metric Power Bit, 1/4'' Socket Head Hex Drive, 2.5mm
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AM-4MM Metric Power Bit, 1/4'' Socket Head Hex Drive, 4mm
AM-3MM Metric Power Bit, 1/4'' Socket Head Hex Drive, 3mm
The AM-3MM Metric Power Bit is made of a proprietary S2 steel and heat treated for increased durability, greater strength and longer life. It has tighter tolerances, superior consistency and a better fit to fasteners leading to better torque transfer. The power bit is best used with Quick-Release (QR series) chucks. Point hex size: 3mm. Overall length: 1-15/16" (49mm).