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LuckyHigh 6pcs Square Hole Drill Bit Tools High Speed Steel HSS Woodworking Adjustable Mortise Chisel Drill Bit Set, Sizes 1/4" 5/16" 3/8" 1/2" 9/16" 5/8" - CHENTAITRADING, CTA-0008
CHENTAITRADING CTA-0008
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UPC
617256011607
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6 Sizes square hole mortise chisels: 1/4"(6.4mm), 5/16" (8mm), 3/8" (9.5mm),1/2" (12.7mm),9/16" (14mm), 5/8"(16mm). These various sizes square drill bits can meet your most needs. Mortising chisels are made of heat treatment, HRC48 50 high-speed steel. These mortise chisels are only used to drill square hole and keyhole drill, mainly for woodworking aspects Don't use these square hole mortise chisels on an electric drill, bench drill. These square hole drill bits are great tools to reduce construction workers' labor intensity and construction costs
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