Top 10 5/16 Drill Bit for Metal – Jobber Drill Bits

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1. Dewalt

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DEWALT DW1120 5/16-Inch Black Oxide Split Point Twist Drill Bit

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Dewalt #ad - 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.

Parabolic flute design improves chip ejection in metal and wood drilling applications. One year warranty, One year service contract, 30 day no-risk trial. One year, one year service contract, 30 day no-risk trial. This product is manufactured in China. Helix is 31 degrees which minimizes the over aggressiveness of a true parabolic flute. Black oxide coated for greater resistance to wear. General purpose bit for drilling through metal, fiberglass, wood, stainless steel.135 degree split point drills on contact and prevents from walking. Black oxide coated for greater resistance to wear. Helix is 31 degrees which minimizes the over aggressiveness of a true parbolic flute.
BrandDewalt #ad
ManufacturerDewalt #ad
Height0.3 Inches
Length6.7 Inches
Weight0.09 Pounds
Width1.8 Inches
Part NumberDW1120
ModelDW1120
Warranty1 Year Full Warranty

2. BOSCH

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BOSCH CO2147 5/16 In. x 4-1/2 In. Cobalt Drill Bit

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BOSCH #ad - Best used for drilling into light-gauge metal, high-carbon steel, cast iron, aluminum and ally steel, stainless steel and titanium. Rigid, thick web design adds stability to bit in tough applications. Available in jobber length, full shank. Surface hardened to penetrate tough abrasive materials. Withstands high-temperature applications for extended periods of time up to 1, 100 degreeF.
BrandBOSCH #ad
ManufacturerBosch #ad
Height0 Inches
Length0 Inches
Width0 Inches
Part NumberCO2147
ModelCO2147
WarrantyNo

3. OXTUL

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Zinc alloy etc. Pack in Plastic Bag, copper, Aluminum, Metal drill, ideal for drilling on mild steel, 12 PCS 5/16" HSS Black and Gold Coated Twist Drill Bits

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OXTUL #ad - Professional & diy use: for use on metal, wood & plastics. Package & size: 12 pieces drill bits in a plastic bag, Total length 4-1/2 inch, Diameter 5/16 inch, Working length 3-3/16 inch.135 tip & twist design: increases cutting speed with self-centering and prevents walking, clears chips and particles faster. Cobalt drill bits: classic m2 High Speed Steel construction with Black and Gold finish for proven capability and durability. Not for use on Concrete / Masonry. Hardness: m2 twist drill bits’ Rock wall Hardness Level HRC 62-63. Perfect match for workshop or service vehicles.
BrandOXTUL #ad
ManufacturerOXTUL #ad

4. BEILI TOOLS

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HSS M35 Cobalt Twist Drill Bits, Pack of 5 8mm, 5/16"

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BEILI TOOLS #ad - High efficiency In Drilling Metals, and Stainless Steel. Drilling in tough metal, including heavy-duty abrasive alloy metal drilling on hardened steel. High quality material. Reduce the processing cost per hole. High speed steel 5% Cobalt M35. The imperial size 5/16" is for reference, 5/16" equals to 7. 94mm. Real size is 7. 96mm, we rounding up 8mm. Please confirm the size before ordering.
BrandBEILI TOOLS #ad
ManufacturerBEILI TOOLS #ad
Height5.59 Inches
Length2.05 Inches
Weight0.44 Pounds
Width0.55 Inches
Part NumberYTDB20178138

5. Drill Hulk

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Stainless Steel, 5/16-Inch Cobalt Steel M35 Jobber Length Twist Drill Bits for Hard Metal, Pack of 6

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Drill Hulk #ad - Application: best used for drilling in hard metal, including stainless steel. 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.

Include: 6 pieces of 5/16-inch cobalt drill bits with case. 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. Jobber length: 5/16-inch cutting diameter, 3-3/16-inch flute length, 135 degree split point, 4-1/2-inch overall length, 3-flat shank.
BrandDrill Hulk #ad
ManufacturerDrill Hulk Ltd #ad
Weight0.5 Pounds
Part NumberDHCO37
ModelDHCO37

6. BOSCH

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BOSCH CO2147B 5/16 In. x 4-1/2 In. Cobalt M42 Drill Bit

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BOSCH #ad - Enhanced m42 alloy material – contains 8% Cobalt alloy that delivers 10x life vs. Standard bits. Surface-hardened tip – penetrates tough abrasive 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. High-heat resistant bits – withstand high-temperature applications for extended periods of time. Thick web-helix design – provides additional stability in tough applications.
BrandBOSCH #ad
ManufacturerBosch #ad
Part NumberCO2147B
ModelCO2147B
WarrantyProduct Defects Only

7. Hymnorq

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Jobber Length and Straight Shank, Hymnorq 5/16 Inch Fractional Size M35 Cobalt Steel Twist Drill Bit Set of 5pcs, Suitable for Repeated Drilling in Stainless Steel, Extremely Heat Resistant

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Hymnorq #ad - The bits will not "walk" or "wander". Cobalt steel - manufactured from m35 grade cobalt steel, with molybdenum and cobalt added to creates a hardened alloy, measuring Rockwell hardness up to 67, for much faster cutting and extra longer life span, with up to twelve times when compared with an average HSS drill bit.

Manufactured to German DIN338 standard. Try to adjust the RPM when it fails to penetrate. Welcome to download. Straight shank allows for firmly holding and accurate centering, fit for standard drill chucks and regular round collet chucks. Self centering - the 135°quick-cut pilot split points are self-centering and can penetrate quickly with less pressure. In most cases, our customers would get a much better result with these tips. For metalworking - particularly successful in cutting through hard metalshardness less than HRC38° such as stainless steel and cast iron, although they can be used for softer materials like copper and aluminium, too.

Not for hardened steel / high carbon steel. 5pc set - the set includes 5pcs of 5/16” diameter m35 grade cobalt steel twist drill bits, packed in a plastic casefor easy storage and carrying. Downloadable user guide - we've summed up some tips of drilling metals, including a RPM chart for several common metals, based on our reviews and some articles on the internet.
BrandHymnorq #ad
ManufacturerHymnorq #ad

8. AugTouf

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4341 HSS 118°Metal Drill Bits for Wood, Plastic, Metal, Steel, AugTouf 5/16" Titanium Drill Bits 10Pcs, Aluminum Alloy

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AugTouf #ad - 10pcs 5/16" twist drill bits10pcs - 5/16”dia 7. 94mm x 3-3/16”flute length 8096mm 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.

Multiple applicationsmall drill bits for soft metal, aluminum alloy and other soft metals. Ideal for diy projects, steel within 5mm thickness, household maintenance and repair. Not for glass, wood, plastic, ceramic or concrete drilling.990 days warrantyif you are not fully satisfied for any reason, please contact us for 100% refund or replacement. Titanium coating increases wear-resistance and durability.

No center punch is needed; Fully ground spiral groove design clears particles quickly, decreases friction and heat and cooler drilling performance. 118° split point & fully ground118°point is more aggressive and has a smaller chisel, enables drilling through softer materials faster. Premium hss titanium coatingindustry grade 4341 high speed steel drill bit set, harder than 4241 HSS used in other similar drill bits set.
BrandAugTouf #ad
ManufacturerAugTouf #ad
Part NumberAU0010007

9. DRILLFORCE

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DRILLFORCE10-piece 5/16" Round Shank HSS Titanium Coated Twist Drill Bits for Metal … 5/16

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DRILLFORCE #ad - Perfect match for workshop or service vehicles. Package & size: 10 pieces in a plastic bag, total length 4-1/2 inch, Diameter 5/16 inch, Working length 3-3/16 inch.

Professional & diy use: for use on metal, wood & plastics, Not For Use On Concrete / Masonry / Stainless Steel. 135 tip & twist design: increases cutting speed with self-centering and prevents walking, clears chips and particles faster. Titanium coated: classic 4241 High Speed Steel construction with Titanium Coating for proven capability and durability. Strength & hardness: made with hss 4241 steel, Rock wall Hardness Level HRC 60-62.
BrandDRILLFORCE #ad
ManufacturerDRILLFORCE #ad
Part Number20017-10

10. BOSCH

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BOSCH TI2147IM 5/16-Inch Impact Tough Titanium Drill Bit,

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BOSCH #ad - Long flutes for effective material removal. Titanium coating for less friction. No skate tip – accurate starts. Designed for heavy-gauge and high-carbon steel. Impact-rated shank for higher torque drill/drivers.
BrandBOSCH #ad
ManufacturerBosch #ad
Height5 Inches
Length4.5 Inches
Weight0.06 Pounds
Width5 Inches
Part NumberTI2147IM
ModelTI2147IM