Best Drill Bits AI pick
Chosen by an AI model from its trained knowledge, with its reasoning.
AI pick: DeWalt Pilot Point Titanium DW1361
The split-point tip starts without walking and the set covers the everyday fractional sizes, so it handles wood, plastic and light steel reliably for general drilling.
Not for: Anyone drilling stainless, hardened steel or masonry. They need cobalt or carbide bits.
AI picks by need
For stainless and hard steel
Irwin Cobalt M-35 (line)
The cobalt alloy runs through the whole bit, so it keeps cutting when resharpened and holds up to the heat that dulls coated HSS.
Not for: Wood-only users, since the bits are more brittle and cost more than they need to spend.
For concrete and brick
Bosch Blue Granite Turbo (line)
Carbide-tipped bits made for hammer drills that clear dust fast in brick, block and concrete.
Not for: Anyone drilling metal or fine woodwork.
What the AI looks for in Drill Bits
- Material vs workpiece
- HSS for wood and mild steel; cobalt (M35/M42) for stainless; carbide tip for masonry The material decides what the bit can cut. A coating only extends life.
- Point geometry
- 135° split point for metal A split point starts on the mark without a center punch and needs less feed pressure than a 118° point.
- Coating vs through-alloy
- Prefer cobalt alloy over titanium-nitride coating when bits will be resharpened A TiN coating is removed by the first sharpening. Cobalt alloy keeps its properties through the whole bit.
- Shank
- Hex shank for impact drivers; round or 3-flat shank for chucks Round shanks spin in a chuck under high torque and will not fit an impact driver.
Brands that matter
- DeWalt: Widely sold Pilot Point and impact-rated sets.
- Irwin: Cobalt and general HSS sets.
- Bosch: Strong in masonry and carbide bits.
- Milwaukee: Shockwave impact-rated and Red Helix lines.
- Drill America: Industrial-grade HSS and cobalt sets.
What to avoid
- Large no-name sets with dozens of sizes and soft steel that dulls on the first steel job
- Using wood or HSS bits in a hammer drill on masonry
- Black-oxide bits for stainless steel
Questions
Is titanium better than cobalt?
No. Titanium is a surface coating on HSS. Cobalt is an alloy that resists heat throughout the bit and is the right choice for stainless.