Specifications: Material: HSS Quantity: 10pcs Diameter Length 0.8mm 22mm 1.0mm 28mm 1.2mm 33mm 1.5mm 38mm 1.8mm 41mm 2.0mm 43mm 2.5mm 52mm 3.0mm 60mm 3.5mm 64mm 4.0mm 71mm Features: Twist working part diamond plating, sharper and more durable. Good stability, corrosion resistance, abrasion. For drilling, boring. Maintenance: When drilling steel, please ensure sufficient cooling capacity and the use of metal cutting fluid. Please clear the wound on the drill body iron, in order to ensure smooth chip evacuation. Package Included: 10 x Twist Drill
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