Machinist Drill Bit Size Chart - ANSI inch Size Drill Chart and ISO Metric Drill Size Chart | Engineers Edge

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 …

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.

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

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.

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 …

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

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.

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.

Values for fractional size, wire gauge size, letter size, metric size, and decimal inch size drills