Gather ’round, folks! We’re diving into the editor’s choice for best steel drill bits
The best best steel drill bits
HIDOTOL 115PCS Cobalt Drill Bit Set M35 HSS for Hardened Steel Fractional 1/16"-1/2", Letter A - Z, Wire #1 - #60 with Indexed Metal Case
out of stock
Amazon.com
as of March 13, 2026 7:44 pm
Features
- High Quality Material - Premium High Speed Steel M35 (Cobalt 5%) provide extended tool life compared to ordinary drill bits when drilling hard materials.
- Characteristics - 135° split point with round straight shank, self-centering prevent walking, make drilling precise and faster. Fully Ground twist design helps clear particles faster, decreases friction and heat for a cooler drilling performance.
- Widely Used - M35 Cobalt High Speed Steel is more suitable for tough, high tensile strength material. Particularly successful in cutting harden metals such as stainless steel, cast iron, high temperature alloy, titanium alloy, hard plastics and woods.
- Specifications - 115pcs includes 29pcs fractional size 1/16”-1/2” by 1/64" Increments, 26pcs letter sizes A to Z, 60pcs numbered wire gauges #1 to #60.
- Organized Holder - The whole drill bit set are kept in one metal case with size index holder for easy storage and organizing.
MulWark Drill Bit Set, 13 Piece 1/16-Inch to 1/4-Inch M35 Cobalt Titanium Nitride Coated Drill Bits for Metal, Stainless Steel, Plastic, Wood, Steel
out of stock
Amazon.com
as of March 13, 2026 7:44 pm
Features
- Set Included; Mulwark cobalt drill bit set features 13 pieces of 1/16” - 1/4-inch drill bits. With a straight shank, these drill bits are designed for easy handling and stability during drilling tasks. The spiral grooves design enhances chip removal efficiency, allowing for smoother and faster drilling. The drill bits are fully grounded, ensuring improved durability and precision in various drilling applications.
- Durability; The metal drill bits feature M35 high-speed steel and 5% cobalt construction, making them exceptionally hard and heat resistant. They are further enhanced with a titanium nitride coating, which improves durability, and hardness, and reduces friction for efficient drilling performance.
- Jobber Length; These cobalt drill bits included 1 / 16”, 5/64”, 3/32”, 7/64” 1/8”, 9/64”,5/32”, 11/64”,3 /16”,13 /64”, 7 / 32”, 15/64”, 1/4 ” drill bits. The 135-degree split point ensures precise and efficient drilling, making them an ideal choice for accurate and clean holes.
- Application; These versatile drill bits sets can be used for drilling through a variety of materials such as plastic, wood, carbon fiber, copper, aluminum alloy, stainless steel, and high-carbon steel. Their multi-purpose design makes them suitable for a wide range of applications, providing convenience and efficiency for various projects.
- Lifetime Warranty; All MulWark tools are warranted of defects in materials and workmanship for as long as you own the product, you may return this product with the original purchase receipt or choose to get a replacement.
MACXCOIP Metric 13Pcs M35 Cobalt Drill Bit Set, 1.5mm-6.5mm HSS Cobalt Jobber Drill Bits, for Hardened Metals, Stainless Steel, Cast Iron and Wooden Plastics, with Plastic Index Storage Box
out of stock
Amazon.com
as of March 13, 2026 7:44 pm
Features
- M35 Cobalt Drill Bit: The M35 cobalt drill bit is a durable, sharp and robust drill bit suitable for cutting stainless steel, iron castings, copper, aluminum and other soft metals as well as plastics, wood etc. Note that it is not applicable to quenched bolts
- Metric Size: The drill bits include 13pcs metric drills: 1.5mm, 2mm, 2.5mm, 3mm, 3.2mm, 3.5mm, 4mm, 4.5mm, 4.8mm, 5mm, 5.5mm, 6mm, 6.5mm, can meet more needs
- Quick and Efficient: The cobalt drill bit set can be used effectively on most soft and hard objects, with a 135 degree point tip and twist design for faster cutting, self-centering to prevent walk-off and faster chip and particle removal
- HSS Drill Bit Set: HSS cobalt drill bit set for hardened steel with excellent cutting performance. 19 sets of drill bits for long term use. The inserts are hardened and polished for improved sharpness and precise cutting without wobbling
- Easy Storage: The drill set includes a drill case with size indexes and is packaged in a small package for easy storage and sorting. If you have any questions, please refer to us and we will be happy to help you
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Price Drops Alerts
HIDOTOL 115PCS Cobalt Drill Bit Set M35 HSS for Hardened Steel Fractional 1/16"-1/2", Letter A - Z, Wire #1 - #60 with Indexed Metal Case, HIDOTOL
out of stock
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Amazon.com
Wait For A Price Drop
Price History
Statistics
| Current Price | - | March 13, 2026 |
| Highest Price | 134.89 | January 19, 2026 |
| Lowest Price | 134.89 | January 19, 2026 |
Since January 19, 2026
Last price changes
| 134.89 | January 19, 2026 |
MulWark Drill Bit Set, 13 Piece 1/16-Inch to 1/4-Inch M35 Cobalt Titanium Nitride Coated Drill Bits for Metal, Stainless Steel, Plastic, Wood, Steel, MulWark
out of stock
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Amazon.com
Price History
MACXCOIP Metric 13Pcs M35 Cobalt Drill Bit Set, 1.5mm-6.5mm HSS Cobalt Jobber Drill Bits, for Hardened Metals, Stainless Steel, Cast Iron and Wooden Plastics, with Plastic Index Storage Box, MACXCOIP
out of stock
BUY NOW
Amazon.com
Wait For A Price Drop
Price History
Statistics
| Current Price | - | March 13, 2026 |
| Highest Price | 8.98 | January 19, 2026 |
| Lowest Price | 8.98 | January 19, 2026 |
Since January 19, 2026
Last price changes
| 8.98 | January 19, 2026 |