Drill Bit 12.8mm Diameter M42 8% Cobalt HSS TiN for Hard Metal
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- 1- PACKAGE CONTENTS - 1 pack of 12.8mm drill bits, with a 150mm (5.91") overall length and 85mm (3.35") flute length, featuring a 135° split-point angle for reduced walking and enhanced drilling accuracy in metal, wood, and plastic applications.
- 2- MATERIAL - M42 cobalt high-speed steel drill bits, with a cobalt content 8%, deliver superior hardness and durability. Known for outstanding wear and heat resistance, as well as high crack resistance, these bits excel in drilling high-strength and difficult-to-machine metals. The titanium nitride (tin) coating enhances surface characteristics, boosting wear and corrosion resistance. This treatment contributes to prolonged tool lifespan and improved operational efficiency.
- 3- APPLICATION - For precision drilling in hard metals, hardwoods, composite boards, and carved components, these bits efficiently process dense woods like rosewood and teak. The cutting edges maintain exceptional sharpness even at high RPM, making them perfect for detailed craft carving, mortise-and-tenon joinery, and thin wood sheet drilling - the ultimate tool for woodworking DIY, furniture manufacturing, and artistic carving applications.
- 4- HIGH EFFICIENCY - Cobalt high-speed steel extended service life & reduced wear. Compared to standard HSS drill bits, it offers a 3–5 times longer tool life, significantly lowering the cost per hole. High-efficiency production: Its balanced wear resistance and toughness ensure reliable performance in automated equipment and high-volume machining.
- 5- TAKE NOTICE OF - Position the twist drill perpendicular (90°) to the workpiece surface. Begin drilling at low RPM (500-800) to establish a small hole, then adjust speed based on material: higher for wood, lower for metals. Use cutting fluid to effectively reduce temperature, minimize wear, and extend drill bit life
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Select a product to estimate shipping.These Kozelo jobber drill bits are designed for precision drilling in a variety of materials, offering a durable and efficient cutting experience. They’re a solid addition to any workshop toolkit.
Key Highlights
- Enhanced Accuracy: The 135° split-point angle reduces walking and improves drilling accuracy, especially in metal.
- Superior Durability: Made from M42 cobalt high-speed steel with 8% cobalt content, these bits resist wear and heat for longer tool life.
- Improved Efficiency: The titanium nitride (TiN) coating boosts wear and corrosion resistance, leading to smoother drilling and reduced friction.
- Versatile Use: Suitable for drilling hard metals, hardwoods, and composite materials, expanding your project possibilities.
Useful Facts
- Material: Cobalt Steel
- Finish: Titanium Nitride Coating
- Shank Type: Straight
- Brand: Kozelo
- Quantity: 1 Pack (12.8mm Drill Bits)
Good Fit For
- Metalworking projects
- Woodworking and carving
- Working with hardwoods and composite materials
- Precision drilling tasks
Product details






| Main Specification | |
|---|---|
| Manufaktur | Kozelo |
| Cacah Unit | Cacah 1 |
| Tipe Shank | Lurus |
| Jenis Flute Alat | Spiral |
| Brand | Kozelo |
| Komponen Sertakan | bukan _ yang dapat diterapkan |
| Materi | Cobalt Steel |
| Tipe Selesai | Titanium Nitride |
| Technical Details | |
| Nomor Bagian | klf250407zz000434 |
| Jenis Material | Cobalt Steel |
| Style | |
| Selesai Tipe | Titanium Nitride |
| Others | |
| Sorot Butir | Cutting Tool for Machining Hard Metal Stainless Steel Woodworking Handicraft Use or 135° Cutting Angle TiN |
| Tipe Produk | Jobber Drill Bits |































