M35 Cobalt Drill Bit Set 20 Piece, Metal Cutting Drill Bits for Steel, Hardened Metal, Cast Iron & Alloy, Fast, No-Walk Starts with 125° Split Point & Three-Flute Design, Indexed Storage Case

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Management number 215637518 Release Date 2026/04/12 List Price $13.20 Model Number 215637518
Category
  • REVOLUTIONIZE DRILLING EXPERIENCE: Take your projects to the next level with this M35 Cobalt Drill Bit Set featuring a 3-Flute Design. Built for metal and steel drilling, these drill bits deliver greater efficiency, accuracy, stability, and durability—making them the first choice for professional and DIY users alike
  • SPECIAL 3-FLUTE DESIGN: The 3-flute drill bit design provides three cutting edges for faster penetration and smoother operation. With a 125° split point tip, the bits stay stable, self-centering for precise and clean holes, while the three spiral flutes ensure superior chip removal and minimize clogging
  • TiN COATING & M35 COBALT HSS: Made from M35 cobalt high-speed steel (with 5% cobalt), these bits achieve up to 3X longer tool life compared to standard HSS. The premium gold TiN coating makes them 5X more wear-resistant than uncoated bits, reducing friction and heat for extended performance in demanding drilling tasks
  • 3-FLATS NO SPIN SHANK: Most drill bits larger than 3/16" feature a three-flat shank that mounts securely in standard chucks, minimizing spin-out. This design ensures easy installation, stable performance, and precise control, whether you use a hand drill or drill press
  • 20-PIECE DRILL BIT SET WITH INDEXED CASE: This 20-piece set includes both 3-flute and 2-flute bits for versatile use. 3-Flute Sizes(12PCS): 1/2", 3/8", 5/16", 1/4", 7/32", 13/64", 3/16", 11/64", 5/32", 9/64", 1/8" (×2); 2-Flute Sizes(8PCS): 7/64" (×2), 3/32" (×2), 5/64" (×2), 1/16" (×2). All bits come in a durable indexed case for easy selection and storage. Note: 1/2" drill bits are slightly shorter than standard lengths.

Model CTW320S
Brand Name OSTTE
Shank Type 3-Flat(7PCS) Straight(13PCS)
Unit Count 20.0 Count
Finish Types Titanium Nitride
Manufacturer OSTTE
Material Type Cobalt Steel
Item Dimensions 6 x 4 x 1.8 inches
Tool Flute Type Spiral
Cutting Diameter 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 11/64, 3/16, 13/64, 7/32, 1/4, 5/16, 3/8, 1/2 Inches
Number of Flutes 3
Included Components Cobalt Drill Bit Set 20 Pieces, Indexed Storage Case
Cutting Angle String 125 Degrees
Surface Recommendation Metal, Steel, Wood

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