6Blade Regular Short Spiral Drill Bit Hard Alloy Tungsten Steel Drill Bit 5.5/ 5.56/5.6/6.35/7.62/9mm Sturdy And Durable Rifling

6Blade Regular Short Spiral Drill Bit Hard Alloy Tungsten Steel Drill Bit 5.5/ 5.56/5.6/6.35/7.62/9mm Sturdy And Durable Rifling

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