8mm Cemented Carbide Twist Drill Bits for Stainless Steel Copper Aluminum 4 Pcs 8 To 8mm L30xD20 Finish: Carburization + Black Zinc

Finish: Carburization + Black Zinc Plated

* Ball Dia

Edges may have burrs

Dimension: 35x35cm / 13

Package Content : 20pcs x Hook and Loop Straps

8mm Cemented Carbide Twist Drill Bits for Stainless Steel Copper Aluminum 4 Pcs 8 To 8mm L30xD20 Finish: Carburization + Black ZincSpecification: Size: 8mm 0. 31" Full Length: 90mm 3. 54" Flute Length: 45mm 1. 77" Shank Diameter: 8mm 0. 31" Tip Material: Cemented Carbide Shank Material: HSS (High Speed Steel) Descriptions: 1. Twist drill bits are made of cemented carbide tip for long service life, it is more sharp and durable than others. 2. Milled U flutes with deep cut spiral provides fast material removal. Suitable for drilling in tough metal, including abrasive alloy and