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Metalworking and multipurpose drill bits are essential for any DIYer or professional tackling projects involving metal, wood, or plastic. The right bit ensures clean, accurate holes and extends the life of your tools. Selecting a bit designed for your specific materials and drilling tasks will significantly improve efficiency and the quality of your finished work.
[HIGH-SPEEDSTEEL DRILL BIT SET] : This high-speed steel drill bit set features a titanium-coated surface, enhancing hardness and wear resistance to ensure lasting sharpness. Ideal for drilling wood, plastic, aluminum, and thin metal sheets
[TITANIUM-COATED DRILL BITS] : The 135° split-tip straight shank design prevents drill bit deviation, and the sharp cutting edge makes drilling faster and more efficient. Improved positioning accuracy makes drilling smoother and easier to control. An...
[MULTI-FUNCTIONAL TWIST DRILL SET] : This multi-functional drill set is suitable for drilling, boring, carving, and grooving in wood. It is also suitable for plastics, aluminum, and thin metals. A reliable choice for any workshop
[SUITABLE FOR MULTIPLE MATERIALS] : This metalworking tool set includes six sizes (3mm, 4mm, 5mm, 6mm, 6.5mm, and 8mm) to meet various processing needs. Ideal for DIY enthusiasts and professionals alike
[STRAIGHT SHANK DESIGN, HIGH COMPATIBILITY] : The round straight shank design is suitable for a variety of materials. Compatible with most corded and cordless drills, bench drills, and rotary tools that can use straight shank drill bits, making it...
[PREMIUM MATERIALS] : Made from carefully selected premium materials for durability. The sharp serrated edge design allows for continued horizontal drilling after the initial hole. The round shank is suitable for both electric drills and bench drills...
【HSS Drill Bit Set】This HSS Drill Bit Set features a titanium‑coated surface for enhanced hardness and wear resistance, ensuring long‑lasting sharpness. Ideal for drilling wood, plastic, aluminum, and thin metal sheets with reduced friction and...
【Titanium Coated Drill Bits】These Titanium Coated Drill Bits come with a 135° split point that prevents walking and enables faster, more accurate starts. The serrated belt design allows horizontal drilling after the initial hole – perfect for...
【Multi‑Material Use】This Metalworking Tool Set includes 6 sizes (3mm, 4mm, 5mm, 6mm, 6.5mm, and 8mm) to cover a wide range of tasks. Compatible with most power drills and bench drills, it meets diverse drilling needs for professionals and DIYers.
【For Wood and Metal】This Drill Bit Set works effectively on multilayer boards, MDF, solid wood, plastic, and thin iron sheets. The sharp cutting edges ensure smooth, efficient operation with clean results – great for home improvement, furniture...
【For Versatile Projects】This Multi‑Purpose Drill Bit Set is suitable for drilling, boring, carving, and grooving across wood, plastic, aluminum, and thin metal. A reliable addition to any workshop, it handles home improvement, furniture assembly...
14-PIECE SET: Includes common drill bit sizes ranging from 1/16 to 3/8-Inch and is ideal for general-purpose drilling materials like metal, wood, and plastic
TITANIUM NITRIDE COATING: Durable titanium coating offers improved performance, faster drilling, and a longer bit life
IMPACT-RATED: Quick-change 1/4-Inch hex shank can be used with both impact drivers and drills
PRECISION DRILLING: 135-Degree split point starts drilling instantly to prevent slipping or walking
ORGANIZED STORAGE: Stand-up bit holders ensure easy and convenient bit organization and allow for easy removal of individual bits
⚡【Sharp Side Cutting Design for Greater Versatility】Upgrade your drilling experience with serrated side cutting edges designed to continue shaping or enlarging holes after drilling. The precision cutting profile helps create cleaner openings while...
🎯【Titanium Coated HSS Construction for Efficient Drilling】Manufactured from high-speed steel with a titanium-coated surface, each drill bit is built to reduce friction and support smooth drilling performance across wood, plastic, aluminum, and thin...
🔹【135° Split Point for Accurate Starts】The precision 135° split point helps reduce wandering on flat surfaces, allowing cleaner hole positioning and improved drilling accuracy. Whether working on wood panels, plastic sheets, aluminum, or light...
📦【6 Popular Sizes for Everyday Projects】Includes 6 commonly used sizes (3mm, 4mm, 5mm, 6mm, 6.5mm, 8mm) to cover a wide variety of home improvement and workshop applications. The included storage pouch keeps every drill bit organized and easy to...
🏡【Designed for DIY, Home Repair & Workshop Use】Suitable for drilling and shaping thin wood, hardwood, MDF, plywood, PVC, acrylic, aluminum, and thin metal sheets. An excellent choice for DIY enthusiasts, hobby makers, woodworkers, furniture...
[1/8 Inch 20PCS] A pack containing 20 pieces 1/8"(Dia 3.175mm) cobalt metal drill bits comes in plastic storage case for easy storage.
[Cobalt 5% HSSCO] Industry grade M35 High Speed Steel, containing 5% cobalt. The drill bits are harder than HSS and can drill hard metal
[135 Degree Self Centering] 135 Degree Split-point provides better automatic centering and prevents walking on the hard surface you are working on.
[Wide Application] Ideal for Hardened Metal, Stainless Steel, Cast Iron, Plastic, PVC Board and Wood, etc.
[High Quality] Directly operated by the factory. Real M35 material goes through more than a dozen processes, Including full grinding and hardening. Diameter accuracy is controlled within -0.03mm.
[1/16 Inch 20PCS] A pack containing 20 pieces 1/16"(Dia 1.588mm) cobalt metal drill bits comes in plastic storage case for easy storage.
[Cobalt 5% HSSCO] Industry grade M35 High Speed Steel, containing 5% cobalt. The drill bits are harder than HSS and can drill hard metal
[135 Degree Self Centering] 135 Degree Split-point provides better automatic centering and prevents walking on the hard surface you are working on.
[Wide Application] Ideal for Hardened Metal, Stainless Steel, Cast Iron, Plastic, PVC Board and Wood, etc.
[High Quality] Directly operated by the factory. Real M35 material goes through more than a dozen processes, Including full grinding and hardening. Diameter accuracy is controlled within -0.03mm.
All in One Set: This Multipurpose Drill Bit Set includes 88 titanium twist drill bits, 26 masonry drill bits, and 26 brad point bits, covering a wide range of drilling needs for various materials
Premium Material: Twist drill bit features 135° cutting point and titanium coating for rust prevention and extended life; high-speed steel masonry and brad point bits for strength and durability; ensure reliable performance for both professional and DIY
Widely Used: Suitable for wood, metal, cast iron, fiberglass, and more; masonry bits for brick and concrete; brad point bits for furniture making, doweling, cabinetry, and other woodworking applications
Easy Storage and Transport: Organized and protected in a plastic storage box; ideal for easy transport and quick access
Everyday Convenience: With a variety of bit options, this set is ideal for everyday tasks around the garage, workshop, and home, providing users with the necessary tools for various drilling projects
High-Grade Titanium-Plated High-Speed Steel Construction：Made with premium high-speed steel substrate and a titanium coating, these drill bits feature enhanced surface hardness and wear resistance. The robust build withstands frequent heavy-duty use...
6-Size Assortment for Wide DIY & Professional Use：This set contains 6 commonly used sizes: 3mm, 4mm, 5mm, 6mm, 6.5mm, and 8mm. The full size range covers most daily drilling jobs, making it suitable for both hobbyist craft work and professional metal or...
Multi-Functional Cutting & Drilling Performance：Designed with serrated flutes and ultra-sharp cutting edges, these bits support drilling, boring, carving, grooving, and polishing. The chip-clearing flute structure keeps material shavings flowing...
Stable Anti-Walk Drilling Design：The 135° split point tip prevents bit wandering at the start of drilling, so you can position holes accurately. The reinforced shank structure ensures steady rotation when used with most standard electric drills and...
Broad Compatibility Across Materials：Works efficiently on solid wood, MDF, multilayer boards, plastic, aluminum, and thin soft metal sheets. This versatile tool kit fits home renovation, furniture assembly, and handmade craft projects, meeting diverse...
Last update on 2026-08-31 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Metalworking & Multipurpose Drill Bits
Understanding Drill Bit Materials
High-Speed Steel (HSS): A common and affordable choice, HSS bits offer good durability and heat resistance, making them suitable for drilling into various metals, wood, and plastics.
Cobalt: An alloy of steel with cobalt, these bits are harder and more heat-resistant than HSS, ideal for drilling into tougher metals like stainless steel, cast iron, and hardened steel.
Titanium Nitride (TiN) Coating: Applied to HSS or cobalt bits, this gold-colored coating further enhances hardness, reduces friction, and increases wear resistance, extending bit life, especially in demanding applications.
Carbide: Extremely hard and brittle, carbide bits are best suited for very hard materials and high-volume drilling where extreme durability is required.
Types of Drill Bit Tips and Flutes
Split Point Tip: These tips start drilling immediately on contact, preventing 'walking' or wandering, which is crucial for precision. They are common on HSS and cobalt bits.
Standard Twist Flutes: The most common design, suitable for general-purpose drilling in wood, metal, and plastics.
Step Bits: Designed for drilling clean holes in thin materials like sheet metal, these bits create multiple hole sizes with a single bit.
Masonry Bits: While not for metal, they are often included in multipurpose sets for drilling into brick and concrete.
Choosing the Right Bit for Your Material
Soft Metals (Aluminum, Brass): HSS bits, possibly with a TiN coating, work well. Ensure adequate lubrication.
Medium Metals (Steel, Iron): Cobalt or HSS bits with TiN coating are recommended for better heat resistance and durability.
Hard Metals (Stainless Steel, Hardened Steel): Cobalt bits are essential due to their superior hardness and heat resistance.
Wood and Plastics: Standard HSS bits are usually sufficient. For very hard plastics or woods, a coated bit can improve performance.
Key Features to Consider
Shank Type: Most bits have a round shank with flats or a hex shank for better grip in the drill chuck.
Bit Length: Longer bits are useful for reaching deep holes, but can be less rigid and more prone to breakage.
Set vs. Individual Bits: Multipurpose sets offer versatility, while individual bits allow you to buy replacements for frequently used sizes.
Frequently Asked Questions
What is the difference between HSS and cobalt drill bits?
HSS (High-Speed Steel) is a standard material offering good durability for general use. Cobalt bits are an alloy of HSS and cobalt, making them significantly harder and more heat-resistant, which is crucial for drilling into tougher metals.
When should I use a titanium nitride (TiN) coated drill bit?
TiN coating enhances the hardness and heat resistance of the underlying drill bit material, typically HSS or cobalt. Use TiN-coated bits for drilling into harder metals or for prolonged use where heat buildup is a concern.
What does 'split point' mean on a drill bit?
A split point tip is designed to start drilling immediately upon contact with the material, preventing the bit from 'walking' or wandering. This feature is excellent for precise hole placement, especially on metal surfaces.
Are multipurpose drill bit sets worth the investment?
Multipurpose sets are often a good value if you frequently switch between different materials like wood, metal, and plastic. They provide a range of sizes and types, offering convenience for various common tasks.
How can I extend the life of my drill bits?
Proper usage is key. Ensure you are using the correct bit for the material, maintain appropriate drill speed, and use cutting fluid or lubricant, especially when drilling metal. Avoid excessive force.
Can I use metal drill bits for wood?
Yes, most metal drill bits, especially standard HSS ones, can be used for drilling into wood and plastics. However, specialized wood bits often provide cleaner holes and faster drilling in wood.
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