HPMAISON True 5% Cobalt Jobber Drill Bit Set, 10Pcs 3mm M35 High Speed Steel Twist Bits, 135 Split Point Extremely Heat Resistant for Stainless Steel, Cast Iron, Hard Metal, Plastic, Wood

Professional & Widely Use: M35 HSS Cobalt 5% Jobber Drill Bits for Drilling Stainless Steel & Hard Steels. Also can be used for drilling metals and other materials, such as cast iron, copper, high temperature alloy, titanium alloy, aluminum, hard plastics and woods, etc. High Quality Material: M35 High Speed Steel with 5% Cobalt, according to DIN 338. Firm and strong for longer service using time. Suitable for particularly tough or hard metal drilling applications such as stainless steel, Cr-Ni and special acid resistant steels. Top Heat Resistant: HPMAISON M35 HSS Cobalt Twist Drill Bits must be used and operated at 1500 RPM or greater for maximum efficiency. Straight shank allows for firmly holding and accurate centering, fit for standard drill chucks and regular round collet chucks. Twist Design & Performance: Precise 135° Split Point, gold oxide finish and round straight shanks. Manufactured to DIN338, prevent walking, clear chips and particles faster. Produced by precision fully ground which ensures chips move smoothly. Easy to Use and Store: 10PCS M35 cobalt steel jobber twist drill bit set sizes - 3mm Drill Diameter, 33mm Flute Length, 60mm Overall Length. 10PCS packed in a plastic box for easy usage and store.