0.016" / #78 / 0.40mm Lightly Used Carbide Drill Bits, 50 Pc

50-piece set of lightly used solid carbide #78 drill bits with standard 1/8" shanks.

These drills are lightly used and have plenty of life left. They are a practical value option for hobby CNC work, precision drilling, backup tooling, testing, and short-run jobs where small solid carbide drills are needed at a lower cost than new drills.

This size is approximately 0.016" / #78 / 0.40 mm, making it useful for very small precision holes in PCB materials, plastics, and other appropriate non-ferrous materials.

Common Uses

• PCB and circuit board drilling
• Very small precision holes
• FR-4, G-10, fiberglass laminate, and similar abrasive materials
• Small holes in plastics and other appropriate non-ferrous materials
• Backup tooling for CNC drilling, repair work, testing, and short-run production

Benefits

• Lightly used solid carbide value
• Small 0.016" / #78 diameter for fine precision drilling
• Standard 1/8" shank fits common PCB drill holders and CNC collets
• 50-piece quantity provides spares for repeat jobs and fragile micro-drill applications
• Comes in a plastic case similar to the photo

Specifications

Condition note: These are lightly used carbide drills, not new and not factory resharpened. They are intended as a value option for hobby CNC work, precision drilling, testing, backup tooling, and light-duty use. Please review the photos carefully before purchasing.