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

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.

This chart lists metric drill bit sizes with mm–inch conversions, shows which sizes are in our 19-piece and 25-piece sets, and links to tap-drill sizes for threading holes.

Sep 23, 2025 · For your convenience, here is a simplified chart of drill bit sizes, including a cross-reference table of common gauge sizing (number / letter sizes) with their metric (SI) and imperial (US …

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

Aug 26, 2025 · In this complete guide, we’ll cover everything you need to know about drill bit sizes, how to read a drill bit size chart, types of drill bits, and practical tips for selecting the correct one for your …

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

Jan 8, 2025 · Discover comprehensive Drill Bits Sizes Chart for ANSI and ISO metric standards. Learn how to calculate drill bit sizes

This comprehensive reference guide includes complete drill bit size charts for all four systems, with decimal inch and millimeter equivalents for easy conversion.

Comprehensive reference chart of decimal equivalents and tap drill sizes for fractional, number, letter, and metric drill bits. Ideal for machinists, fabricators, and DIYers needing quick size conversions and …