Twist Drill Bits

Kendo's 29-piece M35 cobalt drill bit set offers sizes from 1/16" to 1/2" in jobber length for tackling hardened metals like stainless steel and cast iron. Its 135° split point ensures self-centering penetration, ideal for mechanics and DIYers working on tough materials.

• Penetrate hardened metals effortlessly with M35 cobalt high-speed steel for superior durability
• Self-centering 135° split point reduces wandering and speeds up drilling in stainless steel
• Thick web design boosts rigidity to prevent breakage during heavy-duty jobs
• Versatile for stainless steel, cast iron, titanium, wood, and plastics without dulling quickly
• Professional-grade polish and hardening for faster chip removal and precise holes

Exceptional wear resistance from 5% cobalt alloy. Wide size range covers most daily drilling needs. 135° split point aids easy starts on hard surfaces.

Requires coolant or lubricant for prolonged use on very hard alloys. Larger bits demand lower speeds and steady pressure to avoid overheating. Metal case adds weight, less ideal for portable toolkits.

This 21-piece ZNXIMER cobalt drill bit set features 5% cobalt construction for superior wear resistance when drilling stainless steel, hardened steel, and cast iron. Professionals and DIYers tackling tough metals will appreciate its 135° split point for precise, walk-free starts and efficient chip removal.

• Outlasts standard bits with 5% cobalt for tackling stainless steel and hardened metals without frequent replacements
• 135° split point eliminates walking for quick, accurate hole starts without center punches
• Fully ground flutes clear chips rapidly, reducing heat and friction for smoother, faster drilling
• Versatile performance on hard metals, alloys, plastics, aluminum, and wood with proper technique
• Complete size range from 1/16" to 1/2" covers most DIY and pro projects

Exceptional durability in demanding materials like stainless steel and cast iron. Precise 135° split point speeds up drilling and improves accuracy. Broad size selection with duplicates of common sizes for convenience.

Requires careful speed, pressure, and heat management for optimal results. Limited to hardened steel below HRC38 for best performance. May need lubricant on very tough materials to prevent binding.

Bosch TI5IM 5-piece Impact Tough Titanium Nitride Coated Drill Bit Set delivers 2X life over standard bits with no-skate tips and impact-rated shanks. Electricians, plumbers, and HVAC pros should buy it for drilling heavy-gauge carbon steels, light metals, and hardwoods.

• 2X longer life than standard bits for fewer replacements and more projects
• No-skate tip ensures precise starts without center punches
• Titanium nitride coating reduces friction and heat for smoother drilling
• Impact-rated shanks handle high-torque impact drivers reliably
• Long flutes excel at material removal in metals and hardwoods

Exceptional durability in heavy-gauge steels and tough materials. Reduces bit walking for accurate, clean holes. Versatile for impact drivers, cordless drills, and hex chucks.

Limited to 5 common sizes, may need supplements for specialty jobs. Optimized for impact drivers, less ideal in low-torque standard drills. Coating benefits diminish with extreme overuse on abrasives.

The Hi-Spec 99-piece HSS drill bit set provides 14 SAE sizes from 1/16 to 3/8 inch for drilling metal, wood, plastics, and drywall. Its titanium-nitride coating boosts durability and reduces friction, ideal for DIYers tackling home repairs and projects.

• Versatile 99-piece collection covers everyday drilling in wood, metal, plastics, and drywall for all DIY tasks
• Titanium-nitride coating cuts friction, extends sharpness, and withstands heat for reliable performance
• High-speed HSS4241 steel drills faster and lasts longer than standard carbon steel bits
• 14 SAE sizes from 1/16 to 3/8 inch ensure precision for repairs, renovations, and crafts
• Slim tray case with foam inserts and metal latch organizes bits securely for quick access

Comprehensive sizing and quantity for multiple projects without shortages. Enhanced durability from TiN coating and HSS material. Neat storage solution keeps bits protected and sorted.

Limited to SAE imperial sizes, no metric options. No specialized bits for masonry or concrete. Basic case may not withstand heavy daily workshop abuse.

Rocaris offers a 5-pack step drill bit set covering 50 sizes from 1/8" to 1-3/8" and a matching 5-pack countersink set in titanium-coated high-speed steel. Its standout versatility and durable coating make it perfect for DIYers, metalworkers, and woodworkers tackling precise holes and flush screws.

• Replaces 50 individual bits with 5 versatile step drills for effortless multi-hole sizing
• Titanium coating boosts durability, reduces friction, and ensures cooler, longer-lasting cuts
• Countersink bits create flush 90-degree holes for neat screw installation in metal, plastic, and soft materials
• Self-centering 118° split tip prevents wandering and speeds up drilling with fast chip clearance
• Sturdy aluminum case keeps tools organized, protected, and portable for any toolbox

Exceptional versatility across 50 hole sizes in one compact set. High-speed steel with titanium coating for superior sharpness and rust resistance. Convenient aluminum storage case enhances portability and organization.

Not recommended for thick wood or hard metals. Best results on thicker metals require a drill press. Limited to softer materials like aluminum and plastic for optimal performance.

This GMTOOLS 13-piece HSS titanium-coated drill bit set features hex shanks from 1/16" to 1/4" with 135° split points for self-centering and fast cutting in metal, aluminum, steel, wood, and plastic. Its quick-change design and durable coating suit DIYers and pros needing reliable impact driver bits.

• Titanium coating boosts durability and reduces friction for longer bit life
• 135° split point self-centers easily, preventing walk-off for precise holes
• 1/4" hex shank locks securely in quick-change chucks on impact drivers
• Double U-flutes clear chips fast, minimizing heat and enabling cooler drilling
• 13 sizes from 1/16" to 1/4" handle versatile small-hole tasks

Wear-resistant titanium finish extends usability. Self-centering tip speeds up accurate drilling. Quick-change compatibility eliminates chuck slippage.

Smallest 1/16" bit needs pin vise to prevent breakage. Requires coolant for prolonged heavy metal use. Sizes limited to 1/4" maximum.

This EASTPACE 29-piece HSS twist drill bit set ranges from 1/16" to 1/2" with black and gold oxide coating for enhanced wear resistance on tough materials like stainless steel and cast iron. Professionals and DIYers tackling hard metals and wood should buy it for its self-centering 135° split point and efficient chip removal.

• Black and gold oxide coating boosts wear resistance for longer life drilling tough metals
• 135° split point self-centers to eliminate walk-off and speed up penetration
• Fully ground edges ensure fast chip removal and smoother holes
• Comprehensive 29 sizes from 1/16" to 1/2" cover most drilling needs
• Durable index metal case organizes bits for quick access and portability

Exceptional durability on hard materials like stainless steel and cast iron. Precise self-centering reduces errors and speeds up work. Complete size range in a sturdy storage case.

Requires careful speed and heat management to prevent damage. Metal case adds some weight for portability.

This AIMLENTOOL set includes 5 titanium-coated HSS step drill bits covering 50 sizes from 1/8" to 1-3/8" and 5 countersink bits, plus a center punch. Its standout durability and self-centering design make it ideal for DIYers and pros drilling precise holes in metal, wood, and plastic.

• Replaces 50 individual bits with 5 versatile step drills for effortless multi-size hole making
• Titanium coating reduces friction for cooler, faster drilling with extended bit life
• Self-centering 118° tip prevents wandering and speeds up precise cuts
• Countersink bits create perfect 90° recesses for flush screws in wood and soft metals
• Double groove design clears chips quickly to avoid clogging and overheating

Exceptional versatility across metals, wood, plastics, and alloys. Superior durability from titanium coating and high-speed steel. Self-centering and chip-clearing design boosts efficiency.

Step design may progress slower through very thick materials. Best with corded drills for optimal power on larger holes. Not suited for hardened steels without proper lubrication.

This 5-piece HSS step drill bit set with titanium coating drills 50 sizes from 1/16" to 1-3/8" through metal, aluminum, wood, and plastic. Its dual straight flutes ensure fast chip removal and clean holes while tri-flatted shanks prevent slippage, making it perfect for electricians and DIY users.

• Durable titanium coating resists heat, corrosion, and rust for extended lifespan in tough drilling tasks
• Versatile multi-material drilling creates clean holes in steel, aluminum, wood, and plastic effortlessly
• Dual straight flutes speed up chip removal for smoother, faster cuts without clogging
• Tri-flatted shank design grips securely in drills, eliminating slippage during high-torque use
• 50 precise sizes from 1/16" to 1-3/8" in 5 bits offer unmatched versatility for any project

Long-lasting HSS construction with titanium coating. Clean, precise holes across multiple materials. Efficient dual-flute design for quick chip evacuation.

HSS material may dull faster on very hard metals like stainless steel. Only five bits included, may need extras for heavy professional use. Titanium coating can wear with prolonged high-volume drilling.

This 13-piece M35 HSS cobalt twist drill bit set spans 1/16" to 1/4" imperial sizes for drilling steel, cast iron, and other hardened metals. Its sharp 135° split-point tips prevent walking and deliver fast, self-centering cuts, ideal for professionals and DIYers tackling tough materials.

• Effortlessly drills hardened metals like steel and cast iron with sharp blades for fast penetration
• M35 high-speed steel with 5% cobalt ensures superior heat resistance and long-lasting durability
• 135° split-point tip design self-centers and prevents walking for precise starts every time
• Spiral grooves excel at chip removal, keeping holes clean and reducing friction
• Full-grinding nitriding boosts wear resistance for repeated use on tough jobs

Exceptional sharpness and cutting speed through hard metals. High durability from cobalt-enhanced M35 steel. Self-centering 135° tips prevent drill walking.

Imperial sizes only, may not suit metric users. Bits can snap if excessive pressure is applied to very hard materials. No included storage case for organization.