Top 10 Best 5/16 Drill Bit

Speed helix design for three times faster drilling than standard bits. Last 50 percent longer than high-speed steel. Easier drilling, reduced heat and extended drill bit life. Available in jobber length, stubby length, extended length aircraft, 12 In. reduced shank Silver and Deming. For use in steel, copper, aluminum, brass, oak, maple, MDF, pine, PVC, polycarbonate, acrylic, ABS, nylon and composite materials.

10Pcs 516 TWIST DRILL BITS10Pcs - 516Dia 7.94mm x 3Flute Length 76.2mm Metal Drill Bits.This drill bit fits the majority of power drill currently on the market and come with a portable plastic case for easy storage and organization.. PREMIUM HSS TITANIUM CoatingIndustry grade 4341 high speed steel drill bit set, harder than 4241 HSS used in other similar drill bits set. Titanium coating increases wear-resistance and durability.. FULLY GROUND PROCESS 135 SPLIT POINTFully ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance. 135 Split Point with straight shank prevents walking and makes drilling precise. No center punch is needed.. MULTIPLE APPLICATIONSmall Drill bits for soft metal, wood, plastic, steel within 5mm thickness, aluminum alloy and other soft metals. Ideal for DIY projects, household maintenance and repair.NOT for glass, ceramic or concrete drilling.. 90 DAYS WARRANTYIf you are not fully satisfied for any reason, please contact us for 100 refund or replacement..

Cobalt M42 drill bit provides upgraded M42 Cobalt jobber-length bits designed for durability, high heat resistance and Hardened surface for stainless steel, cast iron, titanium, light-gauge metal and aluminum. Enhanced M42 alloy material contains 8 Cobalt alloy that delivers 10x life vs. Standard bits. High-heat resistant bits withstand high-temperature applications for extended periods of time. Thick web-helix design provides additional stability in tough applications. Surface-hardened tip penetrates tough abrasive materials.

JOBBER LENGTH 516-inch cutting diameter, 3-316-inch flute length, 4-12-inch overall length, 135 degree split point, 3-flat shank. MADE FROM HIGH-SPEED STEEL AND 5 COBALT improve much higher heat resistance because of cobalt steel's high red hardness, provide strong durable performance compared to typical hss drill bits. CAN BE REPEATEDLY SHARPENED AS NEEDED cobalt drill bit's hardness is uniform throughout the entire material, so that can be repeatedly sharpened without damaging the cutting edge allowing it to drill more than hss drill bits. APPLICATION best used for drilling in hard metal, including stainless steel. INCLUDE 6 pieces of 516-inch cobalt drill bits with case.

10Pcs 516 Cobalt Drill Bits10Pcs - 516Dia 8mm x 3Flute Length 76.2mm Metal Drill Bits.This drill bit fits the majority of power drill currently on the market and come with a portable plastic case for easy storage and organization.. M35 Cobalt High Speed SteelIndustry grade M35 high speed steel drill bit set, much harder than HSS used in other similar drill bits set. These drill bits contain 5 Cobalt, which increases wear-resistance and durability.. Fully Ground Process 135 Split PointFully ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance. 135 split point with straight shank prevents walking and makes drilling precise and faster. No center punch is needed.. Multiple ApplicationPerfectly suitable for cutting through Hard Metal such as Stainless Steel, Steel, Sheet Metal and Cast Iron as well as Plastic, Aluminum Alloy, Wood and Other Softer Metals. Pay attention to speed, pressure and heat control during drilling.. 90 DAYS WARRANTYIf you are not fully satisfied for any reason, please contact us for 100 refund or replacement..

Strength Hardness - Tapered web enhances strength and durability. Titanium coating adds lubricity and protection from abrasion. Increases drill bit lifetime. Jefe Hex drill bit with enhanced parabolic flutes promotes chip removal which decreases friction and heat. The tapered web adds strength.. Hex Shank - Quick change hex shank fits easily into all power tools and Impact drivers. Solid bonding technology manufacturing eliminates radial runout and improves concentrically. High torque, impact-rated accuracy.. Easy Cut Point - The 135 easy cut split point ensures a precision start, eliminates walking on the work surface which provides clean, accurate holes. No need for a center punch. More effective for drilling on curved surfaces.. Professional Multiple Use - Jefe Hex drill bits are built for general purpose applications, such as DIY projects, home maintenance and MRO Maintenance, Repair and Operations. Ideal for steelcopperaluminumzinc alloywood plastics.. Package Size - 6 Pieces drill bit in a double blister pack with easy opening design. Diameter 516 inch, total length 4.37 inch, 135 split point, hex shank drill bit..

Cobalt drill bits Classic M2 High Speed Steel construction with Black and Gold finish for proven capability and durability.. Hardness M2 Twist drill bits Rock wall Hardness Level HRC 62-63.. Package Size 12 Pieces drill bits in a plastic bag, Diameter 516 inch, Total length 4-12 inch, Working length 3-316 inch.. Professional DIY Use For use on metal, wood plastics. Not For Use On Concrete Masonry. Perfect match for workshop or service vehicles.. 135 Tip Twist Design Increases cutting speed with self-centering and prevents walking, clears chips and particles faster..

Solid carbide tools offer long tool life and faster cutting speeds than other substrates, but are more brittle and must be used with rigid toolholding systems. Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications. Round shanks allow use with a wide variety of toolholding systems. When run in a counterclockwise direction right-hand cut spiral fluted tools evacuate chips up and out of the cut to reduce clogging. Manufactured to National Aerospace Standard 907.

The product is 516 Titanium Nitride drill bit, industrial grade steel, 135 Degree split point, Parabolic flute design, Light gauge metals, extra hard titanium nitride coating. Easy to use. The product is manufactured in China. Titanium Nitride coating for maximum life.