5/16 Inch Cobalt Drill Bits - Set of 10 Pcs, BAIDETS M35 High Speed Steel Jobber Drill Bits, Twist Drill Bits Set for Hard Metal, Stainless Steel, Cast Iron, Plastic and Wood

BAIDETS makes premium quality, professional tools, superior service that wish to make your life more convenient and better!Specifications:Size:5/16 inchIncludes:10 drill bitsMaterial: 5% Cobalt M35 High Speed Steel.Angle Point: 135 Degree.Shank Type: Straight and Round Shank.Packing: Plastic caseFeatures:1.Made from M35 High Speed Steel and contain 5% Cobalt,which increases wear-resistance,durability and extra longer life span.2.Fully ground spiral groove design clears particles quickly,decreases friction and heat for faster drilling performance.3.135°quick-cut pilot split points are self-centering and can penetrate quickly with less pressure.Straight shank prevents walking and makes drilling precise and faster.4.Suitable for drilling holes as Stainless Steel,Copper,Cast Iron,Galvanized Pipe,Aluminum Alloy,Wood and Other Softer Metals.5.Manufactured to German DIN338 standard, This drill bit fits the majority of power drill currently on the market and easy storage and DIY.Instructions for use:1.Keep the drill bits vertical to the object when drilling, Be sure to make both bit and work piece stable. Tilted bit is prone to break during drilling.2.Be careful when you use an electric drill.Please start from the lowest RPM and pressure.3.Drilling metal will accumulate an amount of heat. Necessary to use cooling liquid during drilling to keep the bit cool. Both ok to use lubricant oil and to pour water.4.It's highly recommended that you use a drill press to drill thick metals. Safety instructions:1.Always wear safety goggles and safety items, because it's safe for you.2.Do not wear gloves to avoid hazard of getting caught in the tool and pulling your hand in to get mangled during bit spinning3.Examine the bits before use for cracks or chips, Do not use damaged or bull bits.

• 【HIGH-QUALITY MATERIALS】5/16" drill bit set for metal is made of M35 cobalt high speed steel, containing 5% cobalt, which increases wear resistance and durability, and enhances its using efficiency.
• 【PRECISE AND FAST】135° Quick cut flow point, precise positioning, lower pressure, fast penetration. Equipped with a straight shank to prevent walking, making drilling more precise and fast.
• 【SPECIAL DESIGN】Fully ground spiral groove design clears particles quickly, decreases friction and heat for faster drilling performance.
• 【WIDELY USED】Our drill bits set is perfect for drilling various materials, such as stainless steel, copper, cast iron, galvanized pipe, aluminum alloy, wood and other soft metals. NOT suitable for glass, stone or ceramic materials.
• 【EASY TO USE】10Pcs 5/16" Cobalt Drill Bits, manufactured according to German DIN338 standard. These drill bits fit the majority of power drills currently on the market and come with a portable plastic case. Perfect for DIY , household maintenance and repair.