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Best Choice Vearter 
Vearter 5PCS HSS M2 Twist Drill Bit Set, 5/6/8/10/12mm Hex Shank Quick Change Jobber Drill Bit, Titanium Coated Metal Dr Package & Size - 5PCS Hex Shank Drill Bit Set comes in a durable plastic case with hanging hole for easy storage and retP&N 
P&N HSS Bright Jobber Imperial Drill Bit 13 Piece Set Designed for machine and hand held drilling in metal, wood and plasticHymnorq 
Hymnorq M35 Cobalt Steel Fractional 7/64 Inch Dia. x 2.64 Inch Long Twist Drill Bit 10pc Set, Jobber Length Round Shank, COBALT STEEL - Manufactured from M35 grade cobalt steel, with molybdenum and cobalt added to creates a hardened alloy, mKOZTOL 
KOZTOL 10Pcs Cobalt Drill Bit Set, High Speed Steel, 135 Degree Tip Twist Drill Bits, Twist Jobber Drill Bit Kit for Har High-Speed Steel (HSS) Construction: Made from hardened HSS for superior strength and durability, ideal for drilling intBest Value MACXCOIP 
MACXCOIP Metric 16Pcs M35 Cobalt Drill Bit Set, 4mm HSS Cobalt Jobber Drill Bits, for Hardened Metals, Stainless Steel, M35 Cobalt Drill Bit: The M35 cobalt drill bit is a durable, sharp and robust drill bit suitable for cutting stainless sMACXCOIP 
MACXCOIP Cobalt Drill Bit Set, 13Pcs M35 High Speed Steel Jobber Length Drill Bit Kit for Hardened Metal, Stainless Stee Various Sizes 13 sets of drill bits include 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32"Sutton Tools 
Sutton Tools D105 HSS Jobber Viper Metric Drill Bit 19 Pieces Set, Silver, D105V2M 118 degree Split point minimizes wandering when startingSutton Tools Sutton tools D180 Jobber Drill Bit 19 Pieces Set, Multicolour, D180SM2 Specialised design achieves 70 percent more life in stainless steel than standard drill bitsHi-Spec Hi-Spec 99pc Complete HSS Mixed Drill Bit Set. 1 to 10mm Titanium Coated High Speed Steel Drill Bits for Metal, Wood & P GET DRILLING DONE: For everyday DIY jobs, drill quickly and accurately in soft metals eg. aluminium, mild steel, wood, pSinyeenglon Sinyeenglon Cobalt Drill Bit Set for Hardened Metal and Stainless Steel, 99Pcs M35 High Speed Steel Twist Jobber Metal D Cobalt M35 Material: High cost, but hardness is up to 67, cut faster and has a long life, up to 12 times compared with tVearter Vearter 5PCS HSS M2 Twist Drill Bit Set, 5/6/8/10/12mm Hex Shank Quick Change Jobber Bit Set with AITiN Coated, DIY & Ho Package & Size - Drill bits for metal come in a durable plastic case with hanging hole for easy storage and retrieval. SWoyuosn WOYUOSN 5-PCS high-Strength Eccentric Twist Drill bit，Masonry Drill bits for Concrete Set for Concrete/Glass/Brick/Cemen 【High-Strength Eccentric Twist Drill Bits】Crafted with industrial-grade carbide tips, the WOYUOSN high-strength eccentriJanzoom 2Pcs Cobalt Drill Bits, M35 HSS Metal Jobber Length Twist Drill Bit Set, Suitable for Drilling in Hard Metal, Stainless 【M35 COBALT HIGH SPEED STEEL】Drill bits made from Industry grade M35 high speed steel,much harder than HSS used in otherSTROTON Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs) Premium M42 8% Cobalt Steel ,68-70 HRC (Rockwell Hardness Scale) ,Usually Give the Best Heat,Wear and Chip Resistance anQANYEGN QANYEGN 74 Pcs Twist Drill Bit Set, M35 Cobalt Metric Drill Bits, Cobalt Steel Twist Drill Bits for Hardened Metal, Stai M35 COBALT: Our twist drill bit set is made from M35 cobalt alloy steel, offering exceptional hardness and stability. ThP&N P&N Metric Jobber High Speed Steel Drill 25-Pieces Set, 13 mm x 0.5 mm Size Designed for machine and hand held drilling in metal, wood and plasticP&N P&N HSS Bright Jobber Imperial Drill Bit 29 Piece Set Designed for machine and hand held drilling in metal, wood and plasticHymnorq Hymnorq Jobber Length Mini Twist Drill Bits Set of 60pcs - Six Small Fractional Inch Sizes, 3/64 1/16 5/64 3/32 7/64 1/8 60pcs of Imperial Size Twist Drill Bits - Six sizes(by diameter), 3/64 inch x 10pcs, 1/16 inch x 10pcs, 5/64 inch x 10pcWORKPRO WORKPRO Auger Drill Bit Set with Hex Drive 2-Piece, Garden Post Hole Digger for Planting Bulbs Seedlings, 4x22cm 8x30cm 🌳【Efficient Digging Post Holes】The set contains two sizes of auger drill bits - 1.6" X 9" (4x22CM) and 3" X 12" (8x30CMTomvorks High Speed Steel Extra Long Twist Drill Bit Set, Bits for Wood, Aluminum, Plastics, 5 Drill Bits 2mm-5mm, Most Popular S [Extra Long Cutting ] With a length of 150mm~160mm, these drill bits allow for deep hole drilling in various materials.Sutton Tools Sutton tools SM2 Heavy Duty Cobalt Jobber Drill Bit 19 Pieces Set, Gold, D109SM2 135 Degree split point enables accurate positioning and less drilling pressureSUTTON Sutton D105SLV7 HSS Jobber Viper Drill Bit 7 Pieces Set, Silver 118 degree Split point minimizes wandering when startingViking Drill & Tool Norseman Viking Drill and Tool by 58650 SP-11M Type 643-UB135 Degree Split Point Magnum Super Premium Jobber Drill Bit S 11 pc. Set Premium Metric Jobber 135-Degree Split Point NAS 907BP&N P&N HSS Bright Jobber Imperial Drill Bit 21 Piece Set Designed for machine and hand held drilling in metal, wood and plasticWildBossy WildBossy 19pcs M35 Cobalt Metric Drill Bits Set (1mm-10mm), Straight Shank Jobber Drill Bits, Metal HSS Twist Drill Bit ✅【5% COBALT TWIST DRILL BITS SET】Made from M35 Cobalt Steel with Molybdenum and Cobalt added to form a hardened alloy, cYUENTOEN YUENTOEN 13PCS Cobalt Drill Bit Set 1.5mm-6.5mm, M35 HSS Twist Drill Bits for Carbon Steel, Stainless Steel, Hard Metal, High Quality: Our Twist Drill Bit HSS are manufactured from M35 cobalt steel, with molybdenum and cobalt added to createChampion Champion Cutting Tool Brute Platinum Twister-XL5 29 Piece 1/16"-1/2" x 64ths HSS Jobber Drill Bit Set-135 Deg Split Poin Drill 3x Longer (than competitors drills), Drill 2x Faster (than cobalt), Drill Accurate (135 deg split point, tapered wKOZTOL KOZTOL 10Pcs Mini Twist Drill Bit Set, HSS 2.35mm Shank Titanium Coated 0.6mm to 2.2mm, Micro Drill Bits for DIY, Jewelr Material: The tiny drill bit is made of high-quality HSS(high-speed steel), which has excellent rust resistance and corrSUTTON Sutton D102 HSS Blue Bullet Jobber Metric Drill Bit 13 Pieces Set 118 Degree web thinned point reduces the amount of thrust requiredDEWALT DEWALT DWA1240 Pilot Point Industrial Cobalt Drill Bit Set (14 Piece) Designed for maximum speed and lifeSutton Tools Sutton tools HSS Jobber Viper Metric Drill Bit 25 Pieces Set, D105V3M 118 degree Split point minimizes wandering when startingSUTTON Sutton D105 HSS Jobber Viper Drill Bit 29 Pieces Set, Silver (D105V3) 118 degree Split point minimizes wandering when startingSUTTON Sutton D105 HSS Jobber Viper Metric Drill Bit 13 Pieces Set Silver 118 degree Split point minimizes wandering when startinguxcell uxcell 10pcs Cobalt Jobber Drill Bits 3.5mm / 0.138" M35 High Speed Steel HSS Twist Drilling Bit Tool for Stainless Stee Size - Drilling diameter: 3.5mm (0.138"); round shank diameter: 3.5 (0.138"); drilling depth: 39mm (1.54"); total lengthYIJIZE YIJIZE 150mm Long Drill Bits Set, Diameter 3mm 4mm 5mm 6mm, 4pcs HSS Cobalt Drill Bits, for Hard Metal, Stainless Steel, 150mm Length: When you meet obstructions or when deep holes are required, the 150mm length drill bits are very useful.CCJZBCAU 6Pcs Self Centering Hinge Drill Bit Set with Bit Holder 1/4 Inch Hex Shank 1/8 Inch 7/64 3/32 Precise Center Finding Dri What You Get: The package includes 6pcs self-centering hinge drill bit and 1pc quick-release self-locking bit holder. ThHARFINGTON HARFINGTON 4pcs M35 High Speed Steel Cobalt Twist Drill Bit 6.8mm/0.04" Dia with Quick Change 1/4" Hex Shank Jobber Dril Size - Drill Diameter: 6.8mm / 0.27-inch; Drill Bit Length: 57mm / 2.24-inch; Shank Size: 1/4 Inch(6.3mm) Hex; Shank LenEacam M35 Cobalt Drill Bit, High Hardness Drilling Set, 10 Pack 1.0-5.0MM for Stainless Steel, Sheet Metal, Angle Iron with Sp [Versatile Usage] Widely used in drilling stainless steel plate, automobile spring steel, and die steelSutton Tools Sutton tools D101 SRK3 Imperial Jobber Drill Bit 5 Pieces Set Silver Sutton Toolsuxcell uxcell 12pcs Jobber Drill Bits 6mm (0.236") Black Nitride & Gold Titanium Coated M2 High Speed Steel (HSS) Twist Drill B Twist Drill Bits: Cutting edge diameter: 6mm / 0.236"; round shank diameter: 6mm / 0.236"; cutting edge length: 60mm / 2LEPEVNEY LEPEVNEY 16mm Reduced Shank Twist Drill Bit with 10mm Shank for Stainless Steel Aluminum Alloy Metal Copper Wood Plastic High Durability: Made of tungsten steel material for anti-bending and anti-fracture durability, ensuring long-lasting usSUTTON Sutton SM3 Heavy Duty Cobalt Jobber Drill Bit 25 Pieces Set 135 Degree split point enables accurate positioning and less drilling pressureBOSCH
BOSCH CO2141B 1-Piece 7/32 In. x 3-3/4 In. Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Cobalt M42 drill bit – provides upgraded M42 Cobalt jobber-length bits designed for durability, high heat resistance andBestgle Bestgle 50 Pcs Mini Twist Drill Bit Set Titanium Coated High Speed Steel Drill Bits Round Shank Micro Twist Bits for Woo Multiple Purpose - Set of 50 pcs twist drill bits with 5 varied sizes: 1mm, 1.5mm, 2mm, 2.5mm, and 3mm with round shanksTihebeyan 8pcs Long High-Speed Steel Drill Bit Tool Set 4-10mm for Woodworking Projects, Great for Drilling Deep Holes in Soft Mat [LONG-LASTING PERFORMANCE] - High-speed steel construction for durabilityJectse Eccentric Drill Bit Set, 4 Pcs Hex Shank Twist Bits (6 8 10 12mm) with PH2 Bit, Carbide M35 for Stone, Metal, Wood, Plas [Versatile Use] These eccentric drill bits are suitable for drilling into a variety of materials such as stone, concreteSUTTON Sutton D180 Jobber Drill Bit 25 Pieces Set Specialised design achieves 70 percent more life in stainless steel than standard drill bitsSutton Tools Sutton tools D102 HSS Blue Bullet Jobber Metric Drill Bit 25 Pieces Set 118 Degree web thinned point reduces the amount of thrust requiredIrwin Irwin Industrial Tools 316015 Cobalt Drill Bit Set, 15-Piece Visible clear lid of the drill bit set are desgined for easy viewing of contentsSpacnana Spacnana Twist Drill Bits Set, 8pcs for Drilling Deep Holes, 4mm-10mm Size, High Speed Steel with Long Cutting, Great fo [High-speed Steel Material] Twist drill bits made from high-speed steel for superior hardness and durability.uxcell uxcell 4pcs M35 High Speed Steel Cobalt Twist Drill Bit 4mm/0.04" Dia with Quick Change 1/4" Hex Shank Jobber Drill Bit Size - Drill Diameter: 4mm / 0.16-inch; Drill Bit Length: 36mm / 1.42-inch; Shank Size: 1/4 Inch(6.3mm) Hex; Shank LengtKLOT KLOT Industrial Grade 10pcs Set of Solid Carbide Drill Bit 1mm-10mm Each Size 2-Flute Stub Twist YG6X Tungsten Diameter:1mm-10mmNorseman Norseman Drill Bits 44170 Ultra Dex Type 240-UB 135 Degree Split Point Magnum Super Premium Jobber Drill Set (29 Piece) 29 pc. Ultra Dex Set Premium High Speed Steel Heavy Duty NAS 907B 135-Degree Split PointSutton Tools Sutton Tools D104 HSS Silver Bullet Jobber Drill 5 Piece Bulk Pack, 2 mm Thread Diameter Black 118° Standard point for general purpose applicationsHARFINGTON HARFINGTON 10pcs Cobalt Jobber Drill Bits 2.6mm / 0.102" M35 High Speed Steel HSS Twist Drilling Bit Tool for Stainless Size - Drilling diameter: 2.6mm (0.102"); round shank diameter: 2.6 (0.102"); drilling depth: 30mm (1.18"); total lengthKOZTOL KOZTOL 10Pcs Mini Twist Drill Bit Set, Micro Engraving Drill Bits, HSS 2.35mm Shank Titanium Coated 0.6 to 2.2mm, Hole D Material: The tiny drill bit is made of high-quality HSS high-speed steel, which has excellent rust resistance and corroSutton Tools Sutton Tools D104 HSS Silver Bullet Jobber Drill 5 Piece Bulk Pack, 3 mm Thread Diameter Black 118° Standard point for general purpose applicationsWONAIER WONAIER 4.2mm/0.165" Cobalt Drill Bits M35 Jobber Length HSS Bits Double Ends Stubby Body Twist Drill Bit Set for Harden [DOUBLE END DRILL BIT SIZE]: 10 pcs Cobalt Drill Bit Set,7 sizes to choose from.KEWAYO KEWAYO 12Pcs Micro Twist Drill Bit Set, 0.5-2.0mm Tiny Drill Bit 2.35mm Shank HSS Mini Engraving Drill Bit Hole Drilling Premium material - made of quenching high-speed steel, providing good toughness, high hardness, not easy to breakSUTTON Sutton D104 HSS Silver Bullet Jobber Drill 5 Piece Bulk Pack, 5 mm Thread Diameter Black 118° Standard point for general purpose applicationsHARFINGTON HARFINGTON 10pcs Jobber Drill Bits 4.8mm (1/5") Nitride Coated High Speed Steel (HSS) 4241 Twist Drill Bits for Stainles Size - Cutting edge diameter: 4.8mm / 1/5"; round shank diameter: 4.8mm / 1/5"; cutting edge length: 55mm / 2.17"; overauxcell uxcell Solid Carbide Drill Bits, 1mm C2/K20 Tungsten Carbide Jobber Drill Bits Straight Shank Drilling Tool for Stainles Twist Drill Bits: Drilling Diameter: 1mm / 0.039"; Flute Length: 20mm / 0.79"; Overall Length: 40mm / 1.57"; Cutting HarYellow Paw 3/32 Inch Drill Bit (3 Pack) Industrial Grade M35 Cobalt Titanium Aluminum Nitrite - 3/32" Diameter & Total Length of 2- 3/32 Inch Diameter & 2-1/4 Inch Length - Shank is 1/2" Diameter and Rounded For Easy Fitting Into Any Drill or Rotary HaYDuupxe 8pcs HSS Extra Long Drill Drill Bit, HSS Drill Bit Bit Set Round Shank for Wood Aluminum Plastic 4mm/4.2mm/4.5mm/5mm/5.2 This set includes 8 pieces drill bit in different sizes of the most popular drill bitsHARFINGTON HARFINGTON 10Pcs Cobalt Drill Bits Double Ended 5mm/0.196" M35 High Speed Steel Twist Drill Bit Stubby Body for Hardened Size - The Drill Bits Double Ended is about 5mm/0.196" in diameter, 17mm/0.67 inch in flute length, and about 60mm/2.36Sutton Tools Sutton Tools D104 HSS Silver Bullet Jobber Drill 5 Piece Bulk Pack, 3.5 mm Thread Diameter Black,D1040350 118° Standard point for general purpose applicationsTbest Twist Drill,New 4mm Extra Long 160mm HSS Twist Straigth Shank Auger Drill Bit Tool The twist drillare made from premium high speed steel for increased reliability. A great choice for youPowermax HSS Cobalt Drill Bit Set 5/64 Inch 10Pcs M35 Co Twist Jobber Length Steel Metal Drill Bits ✔️【DRILL BIT DIMENSION】:5/64"(Diameter) x 1"( Flute Length) x 2"(Overall Length)uxcell uxcell 12pcs Jobber Drill Bits 3mm (0.118") Black Nitride & Gold Titanium Coated M2 High Speed Steel (HSS) Twist Drill B Twist Drill Bits: Cutting edge diameter: 3mm / 0.118"; round shank diameter: 3mm / 0.118"; cutting edge length: 36mm / 1Sutton Tools Sutton tools D102 HSS Blue Bullet Jobber Metric Drill Bit 19 Pieces Set, Silver (D102SM2) 118 Degree web thinned point reduces the amount of thrust requiredBivethoi Bivethoi Reduced Shank Twist Drill Bits 16mm Black Nitride & Gold Titanium Coated High Speed Steel 4341 with 10mm Shank Enhanced cutting performance: The twist drill bit is made of high-strength alloy steel, combined with a special heat treWEXWE WEXWE Tools Carbide Jobber Drill Bits with Straight Shank and 118° Point Angle, Applications: for Acrylic Plate Aluminum Attention: The Drills is all Overall Solid Carbide Material, It must be used on high-speed CNC equipment with the high sSUTTON Sutton D1040400 HSS Silver Bullet Jobber Drill 5 Piece Bulk Pack, 4 mm Thread Diameter, Black 118° Standard point for general purpose applicationsBE-TOOL Blacksmiths Drill Bit MASO 14 mm Blacksmith Reduced Shank HSS Drill Bit for Aluminium, Steel, Wood, Plastic, Non-Ferrous ★ Reduced shank - 14 mmJoyhey 20 Pcs 0.5 mm HSS Micro Twist Drill Bit, Mini High Speed Steel Drill for Wood, Plastic, Soft Metal Made of High Speed Steel, high hardness,rust and corrosion resistance, long service life.Vearter Vearter 13.5mm Twist Drill Bit, HSS M2 Quick Change Jobber Drill Bit with 12.7mm Reduced Shank, 135 Degree Split Point, Package & Size - Vearter drill bit comes in a double blister pack with an easy-opening design. Diameter 13.5mm, total leuxcell uxcell Carbide Twist Drill Bits 1.6mm, DIN K45 Tungsten Carbide AlTiSin Coated Jobber Drill Bits Straight Shank Drilling Twist Drill Bits: Drilling Diameter: 1.6mm / 0.063"; Flute Length: 19mm / 0.75"; Overall Length: 38mm / 1.5". Spiral chiPower Max Max Power 10pcs Pack 9/64" HSS Cobalt M35 Drill Bits, 135 Deg. Split Point, General Purpose, Metal, Steel, Iron ✔️【DRILL BIT DIMENSION】:9/64"(Diameter) x 1-3/4"( Flute Length) x 2-7/8"(Overall Length)Sutton Tools Sutton tools D184 Viper Plus DIN338 HSS TiAIN Carded Jobber Drill, 3.3 mm Thread Diameter Independently tested to exceed 2X greater tool lifeMAX-CRAFT Hss Cobalt Drill Bit Double End 10Pcs 30# (0.1285") Drill Steel Metal Cobalt Drill Bit Size: 30#(0.1285"Diameter) x 5/8"( Flute Length) x 2" (Overall Length)NACX NACX 14mm Reduced Shank Cobalt Drill Bit, HSS 6542 High-Speed Steel Twist Drill Bits with 1/2” Shank for Stainless Steel Materials: Made of high carbon steel, with good wear resistance, strength and toughness.HLOFIZI HLOFIZI 1/8" Cobalt Drill Bit (12 Pack), Titanium Twist Drill Bits for Metal, Stainless Steel, Cast Iron and Wood 1/8" Cobalt Drill Bits: 1/8 inch x 2-3/4 inch jobber-length drill bits, 12-Piece. Ideal for drilling hard metal, copper,uxcell uxcell 3/4" M35 Cobalt Twist Drill Bits, High-Speed Steel Jobber Drill Bit for Stainless Steel, Hardened Metal, Cast Iro Specification: Drill Bit Diameter: 3/4"; Flute Length: 3"; Shank Diameter: 1/2" (12.5mm); Total Length: 6"Sutton Sutton SUTHSS20 High Speed Steel Jobber Drill, 2 mm Bit Size x 51 mm Length Suitable for drilling metal, wood and plasticsDrill Hulk 11/64-Inch Cobalt Steel M35 Jobber Length Twist Drill Bits for Hard Metal, Stainless Steel, Pack of 12 JOBBER LENGTH: 11/64-inch cutting diameter, 2-1/8-inch flute length, 3-1/4-inch overall length, 135 degree split point,Sutton Tools Sutton tools D184 Viper Plus DIN338 HSS TiAIN Carded Jobber Drill, 4.0 mm Thread Diameter Independently tested to exceed 2X greater tool lifeChicago-Latrobe Chicago Latrobe 150L Left-Hand (Reverse) Flute High-Speed Steel Jobber Length Drill Bit Set, Uncoated, 118 Degree Conven Set of 29 jobber length drill bits includes inch sizes 1/16" through 1/2" in 1/64" incrementsSutton Tools Sutton tools D184 Viper Plus DIN338 HSS TiAIN Carded Jobber Drill, 6.8 mm Thread Diameter Independently tested to exceed 2X greater tool lifeBE-TOOL Jobber Twist Drills BE-Tool 10 x 3.5mm Ground HSS Drill Bits Metric High Speed Steel Jobber Twist Drills Ideal for Proce ►HSS-R roll forged 4341 high speed steelSinomax Max-Craft 1/4" Inch 10Pcs M35 HSS Cobalt Jobber Length HSS Co HSS E Twist Drill Bit135 Point Angle Split Point, Drilling ● Diameter: 1/4"; Flute Length: 2-3/4"; Overall Length: 4". HSS E HSS Co Cobalt Drill Bits.Sutton Sutton SUTHSS60 High Speed Steel Jobber Drill, 6 mm Bit Size x 102 mm Length Suitable for drilling metal, wood and plasticsSutton Sutton SUTHSS75 High Speed Steel Jobber Drill, 7.5 mm Bit Size x 111 mm Length Suitable for drilling metal, wood and plasticsSutton Sutton SUTHSS70 High Speed Steel Jobber Drill, 7 mm Bit Size x 105 mm Length Suitable for drilling metal, wood and plasticsSUTTON Sutton D108 Cobalt HSS Carded Jobber Drill, 3.0 mm Thread Diameter Brown Made of high speed steel cobaltSipery Sipery 10Pcs M35 Cobalt HSS Jobber Twist Drill Bits 3mm with Straight Shank, Drilling for Stainless Steel, Copper, Alumi Specification - 10Pcs 3mm cobalt drill bits, each kit contains a total of ten drill bits in the same size, Blade length:BOSCH Bosch TI4154 Titanium SP Jobber Drill Bit, 27/64-Inch Titanium drill bits last 6X longer than high speed steelSUTTON Sutton D185 Inox DIN338 HSS TiAIN Tip Carded Jobber Drill, 1.0 mm Thread Diameter, Silver (D1850100) Specialised design achieves 70 percent more life in stainless steel than standard drill bitsAlpha Alpha Gold Series Jobber Drill Bit, 10.6 mm Size Fully ground M2 HSS material increases drill lifeAlpha Alpha Gold Series Jobber Drill Bit, 12.6 mm Size Fully ground M2 HSS material increases drill lifeBOSCH Bosch BL2160 33/64 In. x 6 In. Fractional Reduced Shank Black Oxide Drill Bit Speed helix design for three times faster drilling than standard bits