Best 0.070-Inch Drill Bits for Metal and Precision Projects
A #50 drill bit measures 0.070 inch, or 1.778 mm, and suits small holes in craft, repair, and metalworking projects. For tougher materials, the HARFINGTON cobalt set is the most directly targeted option; for general micro-drilling, consider the Gyros HSS set. PATIKIL’s M2 bits offer another metal-focused choice, while METALLIXITY is suited to lighter DIY work. Compare material, point style, and pack size before choosing.
| Product | Best For | Material or Key Feature |
|---|---|---|
| HARFINGTON #50 Cobalt, 12 Pieces | Tough materials | HSS with cobalt; 118° split point |
| Gyros #50 HSS, 12 Pieces | Crafts and precision work | HSS; straight shank |
| METALLIXITY #50, 5 Pieces | Light-duty DIY | 4341 HSS; 118° point |
| PATIKIL #50 M2 HSS, 12 Pieces | General metal drilling | Black nitrided finish; 118° point |
| PATIKIL #50 M2 HSS, 12 Pieces | Harder materials and split-point preference | Gold finish; 135° split point |
HARFINGTON #50 Cobalt Drill Bits
Best for: Buyers who need a small bit for stainless steel, cast iron, or other tough materials. This 12-piece set uses high-speed steel with cobalt, a material combination the product listing identifies for hardness and wear resistance.
Each bit has a 0.070-inch diameter, a 25 mm drilling length, and a 50 mm overall length. The 118° split point is designed to help center the bit, while the spiral flutes help clear chips during drilling. These details make it a direct choice for users prioritizing metal-focused features in a #50 bit.
Limitation: The listing does not specify a compatible chuck size or tool model. Confirm that the straight round shank works with your holder before ordering.
Gyros #50 HSS Micro Drill Bits
Best for: Jewelers, model makers, hobbyists, and other users drilling small features in materials such as plastic, resin, and soft metal. The 12-piece set contains #50 bits made from high-speed steel, which the listing describes as combining hardness and toughness for precision tasks.
The straight-shank design is intended for a range of hand and motorized tool holders. The product listing names a pin vise and an adaptor chuck as possible tool-holding approaches; check your equipment’s requirements before use. Choose this set if you want a dozen identical 0.070-inch bits for repeat craft or repair work.
Limitation: This is an HSS set, not the cobalt option above. The listing focuses on jewelry, plastic, resin, and soft metal rather than specifically recommending it for hard metal drilling.
METALLIXITY #50 HSS Bits
Best for: DIY users who need a smaller five-piece pack for hand drilling, maintenance, or repair. These 0.070-inch bits are made from 4341 HSS and have a 118° standard point. Listed uses include wood, plastic, and low- to medium-hardness metals such as aluminum alloy and copper.
The listed flute length is 24 mm, and overall length is 51 mm. The product description recommends adjusting drilling speed to the material: higher speeds for softer materials and lower speeds for harder ones. That makes this set a practical choice when the work is varied but not especially demanding.
Limitation: The listing describes the bits for low-intensity applications and medium- to low-hardness metals. Choose a different option if your main task involves harder metals.
PATIKIL #50 M2 HSS Drill Bits
Best for: Users looking for a 12-pack of #50 bits for general metal drilling. These M2 high-speed steel bits have a 118° point and a black nitrided surface, which the listing says enhances wear and corrosion resistance. Listed materials include low- and medium-carbon steel, alloy steel, stainless steel, cast iron, and aluminum alloys.
Each bit measures 25 mm in flute length and 50 mm overall. Choose this set if you want a metal-oriented M2 option with standard-point geometry. For harder materials, the product listing recommends coolant to reduce wear.
Limitation: Coolant is specifically recommended for harder materials, including high-carbon steel, stainless steel, and alloy steels. Plan for that added drilling consideration when selecting this set.
PATIKIL #50 M2 Bits With 135° Point
Best for: Buyers who prefer a 135° split point and want a 12-piece M2 HSS set. The listing describes these bits for medium- to high-hardness materials, including stainless steel, iron, aluminum, and copper. It also lists plastics and wood as possible materials.
The gold finish is described as helping resist wear and corrosion. Compared with the PATIKIL 118° set, this version has a shorter 22 mm flute length and 46 mm overall length. Choose it if the split-point style and more compact length suit your setup.
Limitation: The shorter flute and overall lengths differ from the other PATIKIL set, so check the required drilling depth and available clearance before buying.
Buying Guide: How to Choose a 0.070-Inch Drill Bit
What does #50 mean?
A #50 wire-gauge drill bit has a listed cutting diameter of 0.070 inch, equivalent to 1.778 mm. Confirm that this diameter matches the hole size needed for your project; a #50 designation is not the same as choosing a bit by fraction-of-an-inch size.
Which material is right for the work?
Match the bit material to the workpiece. The listed cobalt option is aimed at tough materials. M2 HSS options are listed for a range of metals, while the METALLIXITY set is positioned for lighter work and softer materials. For jewelry, plastic, and resin projects, the Gyros HSS set is specifically described for those uses.
Does the point angle matter?
The 118° options provide a common point style across several listed sets. The 135° PATIKIL option has a split point. Compare the angle and point design with your drilling needs, and do not assume that a particular point is suitable for every material or tool.
What should I check before ordering?
- Verify the 0.070-inch diameter and the required hole depth.
- Compare flute length and overall length if space is limited.
- Check that the straight shank fits your hand tool, pin vise, or chuck.
- Consider pack size: options here range from five bits to 12 bits.
- Follow the product’s material and speed guidance; use coolant where the listing recommends it.
Frequently Asked Questions
Is a #50 drill bit 0.070 inch?
Yes. The products listed as #50 specify a cutting diameter of 0.070 inch, or 1.778 mm.
Which 0.070-inch bit is best for stainless steel?
The HARFINGTON set is made from HSS with cobalt and is listed for stainless steel. PATIKIL also lists its M2 HSS options for stainless steel; its 118° set recommends coolant for harder materials.
Can these bits be used with a pin vise?
Several listings describe straight-shank bits for hand tools or pin-vise use. Confirm that the shank and holder are compatible before drilling.
Are all the products in this list the same length?
No. Listed overall lengths range from 46 mm to 51 mm, and flute lengths also vary. Check those measurements against the workpiece and tool clearance.