What Are the 3 Types of Drill Bit Sizes? Fractional, Numbered, and Lettered Explained
Discover the three main types of drill bit sizes—fractional-inch, numbered, and lettered—and learn which to use for your woodworking and engineering projects.
Discover the three main types of drill bit sizes—fractional-inch, numbered, and lettered—and learn which to use for your woodworking and engineering projects.