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Insty-Bit Quick-Change Chucks
For 1/4" Hex Accessories, 3/8" Arbors. Quick-Change Chucks are the heart of the INSTY-BIT System. Their patented design provides accurate positioning and retention of 1/4" hex power bits. They are constructed of steel to precision tolerances. Parts subject to stress and wear are hardened and tempered to insure strength and long life.
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