Features: 100% brand new and high quality. Can be used with bench drill, hand drill and other professional equipment. High carbon steel with titanium plating in surface, good looking and rustproof. Very helpful for wood plug cutting, dowel maker, make countersink bored holes. Specifications: Material: High-carbon steel. Shank diameter: 6.3mm/0.25inch. Size: 6mm/0.24inch,8mm/0.31inch,13mm/0.51inch,16mm/0.63inch. Total length: 48mm/1.89inch. .
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