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#Step Drill Bit for Stainless Steel#Set Steel Step Drill Bit#Quick Change Drill Bit Set
Step drill test
According to the product groove shape, spiral step drill bit heli can be divided into straight groove, spiral groove, arc groove three categories;
According to the number of product spiral step drill bit bit can be divided into single edge, double edge, three edge, four edge and multi edge step drill;
Step Drill is normal for the national standard, in the daily industrial use of most customized non-standard, general production Spiral Step Drill Bit manufacturers can provide drawings can be produced.
3 years ago
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