Groove Spiral Step Drill Bit This groove spiral step drill bit has double spiral grooves, which can effectively reduce cutting resistance. This groove drill bit adopts a self centering design, effectively reducing drill slip. The reamer straight drill bits remove chips quickly because they have spiral chip removal holes. This step drill bit adopts a hexagonal handle design, which can be tightly held during drilling and is not easy to slip. Product Features This spiral step drill bit is suitable for drilling and expanding holes in iron, aluminum, copper, plastic, and wooden plates. This step drill bit is highly wear-resistant and can meet your fast and stable drilling needs. This step drill bit adopts a double helix design, making the holes sharper.        Specifications: Product Name Groove Spira…

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Danyang Yongshun Tools Co.,Ltd

In addition to its location in Houxiang Town in Danyang City, Jiangsu Province, Danyang Yongshu…

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