#80–#56 Micro Carbide Drill Bit Set – 50 Pc, 25 Sizes, 1/8" Shank

#80–#56 Micro Carbide Drill Bit Set – 50 Pieces, 25 Sizes

This 50-piece factory resharpened solid carbide micro drill bit set includes 2 drills each of 25 numbered sizes from #80 through #56, covering .0135" through .0465".

It is a versatile precision drilling assortment for users who want a broad range of closely spaced numbered micro drill sizes in one organized set. With two drills of every included size, you also have a built-in spare if one drill becomes damaged.

This size range is useful for PCB drilling, electronics prototyping, model making, plastics, resin, polymer clay, beads, crafts, small CNC drilling, precision hobby work, and other small-hole applications where controlled diameter selection is important.

These are factory resharpened solid carbide drills. They are not new production drills, but they provide a practical lower-cost way to obtain a broad range of precision carbide drill sizes.

Best For

• PCB drilling and electronics prototyping
• Small CNC drilling and desktop CNC work
• Model making, miniatures, and precision hobby work
• Plastics, resin, polymer clay, beads, and craft materials
• Checking, matching, or stepping through numbered drill sizes
• Precision small-hole drilling in suitable materials
• Users who want a broad numbered drill range with a spare drill in every size
• Carburetor jet and other small-orifice work when this size range is appropriate

Set Summary

Included Sizes – 50 Pieces Total

Includes 2 pieces each of the following 25 numbered drill sizes:

Why Choose This Set?

• 25 closely spaced numbered sizes for precise diameter selection
• 50 pieces total with a backup drill in every included size
• Useful for PCB work, electronics, model making, crafts, plastics, and precision drilling
• Factory resharpened carbide provides a lower-cost alternative to new carbide drills
• Indexed storage case keeps all 25 sizes organized
• Standard 1/8" shanks fit many PCB drill holders, CNC collets, rotary tools, pin vises, and precision drilling setups

Factory Resharpened Solid Carbide Value

These are factory resharpened solid carbide drills, offering a practical lower-cost alternative to new carbide micro drills. They are professional-style micro drills with standard 1/8" shanks, intended for stable, accurate drilling setups where rigidity and precision matter.

Unlike lightweight hobby-style wire drill assortments, these are solid carbide micro drills with full 1/8" shanks and are packaged in an indexed storage case for organized size selection.

Use note: Solid carbide drills are precision tools that require a stable setup. For best results, use a pin vise, drill press, milling machine, micro drill fixture, CNC machine, or other controlled holder that keeps the workpiece square to the drill. Avoid handheld electric drills, side pressure, bending, or forcing the drill.

Application Notes

This set is intended for precision small-hole drilling in suitable materials. It may be useful for PCB substrates, plastics, resin, polymer clay, beads, model materials, and other non-hardened materials where small numbered drill sizes are needed. Because solid carbide is hard and brittle, use a rigid setup, light pressure, and appropriate speed/feed for the material.

For best results when enlarging an existing hole, step up gradually through the drill sizes. Do not force the drill, apply side pressure, or use the drill like a reamer.

Carburetor jet use: The #80–#56 range may also be useful for careful carburetor jet sizing and other small-orifice work when these diameters match the application. For carburetor-focused sets with different ranges and configurations, see the carburetor drill set collection below.

Frequently Asked Questions

What size range is included?
The set covers #80 through #56, or .0135" through .0465".

How many drills are included?
This set includes 50 drills total: 2 pieces each of 25 numbered sizes.

Why are there two drills of every size?
The duplicate drill provides a spare while still giving you a complete #80–#56 assortment.

Are these new drills?
No. These are factory resharpened solid carbide drills. They provide a practical lower-cost alternative to new carbide drills.

Are these solid carbide or carbide tipped?
These are solid carbide micro drills, not carbide-tipped drills.

Can I use these for PCB drilling?
Yes. These micro carbide drills are suitable for PCB-related drilling when used in a stable drill press, CNC machine, micro drill fixture, or other controlled setup.

Can these also be used for carburetor jets?
Yes, when the #80–#56 (.0135"–.0465") range matches the jet or small-orifice sizes you need. For carburetor-focused assortments with other ranges, compare the carburetor drill sets linked below.

Can I use these by hand?
They can be used carefully in a pin vise or other controlled holder, but carbide drills are brittle. Keep the drill straight, use light pressure, and avoid side loading.

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