DelitonGude 1/4 inch HSS M35 Cobalt Twist Drill Bits,High Speed Steel,Pack of 10,Suitable for Steels,Cast Iron,Stainless Steels and Other Hard Metals(1/4inch) - Gude Precision tools, Gude(A)1/4

• Great product and very good quality. Made from M35 Hight-speed Steel and 5% Cobalt.Size:1/4"inch.Total length:105mm,Work length:65mm The blades are very sharp and they drill into metal fast.Including Steels,Cast Iron ,Copper,Galvanized Pipe,Aluminum Alloy,Wood, Plastic and Other Hard Metals.If you need to drill hard metal, Highly recommended use drilling press contral the RPM.Not for Glass or Ceramic Materials. Full-grinding Nitriding,Good Wear resistance,Durable,Spiral groove design, well chip removal performance.135 Tip & Twist Design,Increases cutting speed with self-centering and prevents walking. For Professional and DIY Use, household maintenance and repair.These are so good to save times Works great and good price, Will be a good assistant in your work