M3 x 3.9 Inch L-Handle Long Arm Wrench Hex Key Best Seller The 23 piece metric spiral

The 23 piece metric spiral point taps and hex dies are recommended for use in production tapping and drilling of work hardening grades of stainless steel

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M3 x 3.9 Inch L-Handle Long Arm Wrench Hex Key Best Seller The 23 piece metric spiralHex keys have hexagonal (six sided) tips that fit into the hexagonal shaped (six sided) indentation in the bolt or screwhead. The hex key is then turned to rotate the faster to tighten or loosen it. The hex key can be L shaped with two arms of unequal length one long and one short. The short end can reach fasteners in tight spaces while the long end extends the reach of the tool. Rotating a fastener using the long end as a handle provides more torque