#80–#56 Carburetor Jet Drill Set, 50 Pc, 25 Sizes, 2 Each, Factory Resharpened | D7

Carburetor Jet Drill Set – 50 Piece #80–#56

This 50-piece factory resharpened solid carbide numbered drill set includes 2 drills each of 25 sizes, covering #80 through #56. The set is well suited for careful carburetor jet tuning, checking, and resizing work on brass carburetor jets and other precision fuel-metering parts.

This size range is useful for motorcycle carburetors, kart engines, small engines, scooters, radio-controlled engine carburetors, and custom jet tuning where small, controlled size changes are needed. It can also be used for PCB-related drilling, model making, plastics, composites, and other precision small-hole work.

These are factory resharpened solid carbide drills. They are not new production drills, but they offer a practical lower-cost alternative to new carbide drills for users who need multiple small numbered sizes in one organized set.

Best For

• Carburetor jet tuning and careful jet resizing
• Main jet and pilot jet sizing work
• Motorcycle, scooter, kart, small engine, and RC engine carburetors
• Checking, matching, or stepping up numbered drill sizes
• Small precision holes in suitable materials
• Users who want a broad numbered drill range instead of buying each size individually

Set Summary

Included Sizes – 50 Pieces Total

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

Benefits

• 50-piece set provides a backup drill in every included size
• 25 numbered drill sizes from #80 through #56
• Useful range for carburetor jet tuning and small precision holes
• Factory resharpened carbide offers a lower-cost alternative to new carbide drills
• Indexed storage case helps keep the sizes organized
• Standard 1/8" shanks fit many PCB drill holders, CNC collets, rotary tools, 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 jet square to the drill. Avoid handheld electric drills, side pressure, bending, or forcing the drill.

Important Jet Tuning Note

Drilling a carburetor jet is a permanent modification. Increase size gradually and do not skip too far at once. For the most exact fuel-flow work, remember that jet flow can depend on more than the hole diameter alone, including the entry shape, exit shape, and finish of the jet.

Frequently Asked Questions

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

Are these for enlarging brass carburetor jets?
Yes. These drills are commonly used for careful resizing of brass carburetor jets in motorcycles, karts, small engines, scooters, and RC engines.

How many drills are included?
This set includes 50 drills total: 2 pieces each of 25 numbered sizes from #80 through #56.

Are these numbered drill sizes?
Yes. This set includes numbered drill sizes #80 through #56, from .0135" through .0465".

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

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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