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uxcell Magnetic 4mm Tip 6.3mm Shank Diameter Hex Bits 10 Pcs - Screwdriver Socket Bits - Amazon.com
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Amazon.com: GEARWRENCH 3/8" Drive Hex Bit Metric Socket 4mm - 80425 : Tools & Home Improvement
Amana Tool - 314004 Carbide Tipped Through-Hole Boring Bit R/H 4mm Dia x 70mm Long x 10mm - Straight Router Bits - Amazon.com
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