Woodworking tools wood drilling hole opening home hand electric drill self centering three-point drill woodworking drill bit woodworking precision drilling bit, more accurate than the ordinary drill bit positioning, the middle of the three sharp corners, the most sharp, aimed at the center of the hole to be drilled, and as long as the middle sharp corner contacts with the center of the circle, the drill bit has a relatively stable support point, no longer produce deviation phenomenon. The unique three-point design makes the cutting force of the drill bit larger, faster, and more accurate.

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