Адрес: Sunjia Village, Dalu Town, Zhenjiang New Area, Zhenjiang, Jiangsu, China (Mainland)
Телефон: +86-511-3722010
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Step drills are ideal for drilling repetitive holes in steel, copper, brass, plastic, and other materials. High speed steel with double fluted ground cutting edge for long life.With laser printing size for each step
We are a professional and bigger drill bits factory in China,Below is our business range for your reference:Drills.A. For drill iron and steel: Black twist drill, Polishing twist drill,Titanium-coated