ANSI and ISO Twist drill size chart Fractional and Metric Sizes per. ANSI/ASME B94.11M-1993 below are the standard size drill bits used and readily available in industry. Fractional sizes are measured in …

Aug 26, 2025 · Drill bit size chart guide with fractional, metric, number, and letter sizes. Learn how to choose the right drill bit for wood, metal, and masonry.

The drill bit size chart provides equivalent sizes for letter, metric, wire gauge, and fractional drill bit sizes, allowing the user to select the correct drill bit for their project.

Such an appropriately sized drill is called a tap drill for that size of thread, because it is a correct drill to be followed by the tap. Many thread sizes have several possible tap drills, because they yield …

Comprehensive drill size chart for manufacturing and fabrication. Includes fractional, metric, wire gauge, and letter drill bit sizes with decimal equivalents for quick reference.

Drill bits can be made in any size, but standards define sets of sizes that are widely produced and stocked. In the U.S., fractional inch and gauge drill bit sizes are in common use. In nearly all other …

Luckily, Drill Bit Warehouse has you covered with our drill sizing chart. Use the drill bit chart below to determine which bit matches the hole diameter you must drill.

Mar 31, 2025 · Drill size chart for machining - get the right size drill bit in fractional sizes, letter sizes, number sizes, and metric sizes.

Aug 5, 2025 · This chart includes fractional, metric, numbered, and lettered drill bit conversions. Download the drill bit sizes chart and tape it to your workbench or pegboard.

Sep 9, 2018 · Instantly find drill bit conversions, just refer to one of our tables for standard gauges, fractional inch sizes and centre drill bit sizes. Every drill size chart you’ll ever need is in this article! …