Titanium Coated HSS Twist Drill Bit Set – 6 Sizes 3–8mm
Titanium Coated HSS Twist Drill Bit Set – 6 Sizes 3–8mm
Titanium Coated HSS Twist Drill Bit Set – 6 Metric Sizes
Tackle any drilling or grooving project with confidence using this versatile 6-piece titanium-coated high-speed steel (HSS) twist drill bit set. Featuring the six most commonly used metric sizes — 3mm, 4mm, 5mm, 6mm, 6.5mm, and 8mm — this set is built for woodworkers, DIY enthusiasts, and professionals who demand precision and durability in a single toolkit.
Key Features
- 6 Essential Metric Sizes: 3mm, 4mm, 5mm, 6mm, 6.5mm, and 8mm — everything you need for everyday drilling tasks in one set.
- High-Speed Steel 4241 Construction: Crafted from HSS 4241 with a titanium coating for outstanding hardness, durability, and extended working life.
- Fully Ground Spiral Groove Design: Rapidly reduces friction and heat buildup, delivering faster, cooler, and more efficient drilling performance.
- 135° Split Point Tip: The precision-ground straight shank tip prevents bit walking and starts drilling immediately — no center punch needed.
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3-in-1 Serrated Drill Functionality:
- Function 1: Standard drill bit for clean, precise holes
- Function 2: Sawtooth groove cutting tool
- Function 3: Surface saw blade action on wood
- Wide Material Compatibility: Works on stainless steel, cast iron, wood, aluminum alloy, plastic boards, tiles, concrete, bricks, masonry, and more.
- Universal Fit: Compatible with most standard electric drills — easy to install and swap out.
Specifications
| Material | High-Speed Steel (HSS 4241) |
| Surface Treatment | Titanium Coating |
| Sizes Included | 3mm, 4mm, 5mm, 6mm, 6.5mm, 8mm |
| Structure | Saw & Drill (3-in-1) |
| Point Angle | 135° Split Point |
| Shank Type | Straight Shank |
| Application | Woodworking, Metalworking, Aluminum Alloy, Plastic, Masonry |
| Quantity | 1 pc per size (sold individually by size) |
| Country of Origin | Made in China |
Usage Scenarios
- Holing and cutting in wood, soft metal, aluminum plate, and iron
- Drilling and cut-grooving on thin wood panels, plastic boards, and aluminum sheets
- General DIY home improvement and workshop projects
Package Contents
- 1 × Titanium-Coated Serrated Twist Drill Bit (select your size: 3mm / 4mm / 5mm / 6mm / 6.5mm / 8mm)
Note: Cooling liquid is recommended during drilling of hard metals. Cooling liquid is not included. Actual color may vary slightly due to monitor brightness and lighting conditions. Please allow minor measurement deviations.
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Frequently Asked Questions
Q: What materials can these titanium-coated drill bits cut through?
A: These HSS 4241 titanium-coated twist drill bits are engineered for a wide range of materials, including stainless steel, cast iron, wood, aluminum alloy, plastic boards, tiles, concrete, bricks, and masonry. The titanium coating adds extra hardness for tackling both hard metals and softer materials with ease.
Q: Do I need a center punch before using these drill bits?
A: No! The 135° split point tip is designed to grip the surface immediately upon contact, preventing the bit from wandering or walking. This means you can start drilling accurately without needing a separate center punch.
Q: Are these bits compatible with my electric drill?
A: Yes. These drill bits feature a standard straight shank design that fits most conventional electric drills and drill presses available on the market. Simply select the size you need and you're ready to go.
Q: Is cooling liquid required when using these drill bits?
A: When drilling through hard metals such as stainless steel or cast iron, using a cooling liquid is strongly recommended to maintain bit performance and longevity. Please note that cooling liquid is not included in the package.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.