Top 8 Best 5/16 Drill Bits

General purpose bit for drilling through metal, wood, fiberglass, stainless steel. This product is manufactured in China. This product meets customer requirement. 135 Degree split point drills on contact and prevents from walking. Parabolic flute design improves chip ejection in metal and wood drilling applications. Black oxide coated for greater resistance to wear. Helix is 31 degrees which minimizes the over aggressiveness of a true parabolic flute. One year , one year service contract, 30 day no-risk trial. 135 degree split point drills on contact and prevents from walking. Parabolic flute design improves chip ejection in metal and wood drilling applications. Black oxide coated for greater resistance to wear. Helix is 31 degrees which minimizes the over aggressiveness of a true parbolic flute. One year warranty, One year service contract, 30 day no-risk trial.

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 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..

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 6542 high speed steel drill bit set, harder than 4241 HSS used in other similar drill bits set. These drill bits also 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 Hard Metal such as Stainless Steel, Steel and Cast Iron as well as Wood, Aluminum Alloy and Other Softer Metals. NOT for Glass or Ceramic Materials. NOT for High Carbon Steel and Heat-Treated Steel. 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..

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.

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..

No skate tip accurate starts. Designed for heavy-gauge and high-carbon steel. Long flutes for effective material removal. Impact-rated shank for higher torque drilldrivers. Titanium coating for less friction.

Accuracy Longevity - 135 degree split point starts drilling immediately requires less force and eliminates walking across the working surface. Tapered web provides strength, durability, and reduces breakage.. Three-Flat Design - Three flats on shank eliminate bit spinning in chuck. Our proprietary parabolic flute design brings optimal chip removal which reduces heat build-up.. Wide Range of Uses - Drill bits are built for general purpose applications, such as steelcopperaluminumzinc alloywoodplastics. Also, it's ideal for DIY projects and home maintenance. Durable and reliable quality.. Black Gold Coating - Black and gold coating increases lubricity, supplies corrosion protection, and increases durability. Ensures longer tool life in multiple working conditions. Tapered web provides strength, durability, and reduces breakage.. Package Size 2- Piece drill bits in a double blister pack with easy opening design. Diameter 516 inch, total length 4-12 inch, working length 3-316 inch, 135 degree split point, 3-flat shank..

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.

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.