Milescraft 1307 DrillBlockPRO - All Metal Handheld Drill Guide for Drilling Straight Holes - Has 25 Drill Guides Total Ranging From 1/8 Inch to 1/2 Inch in 1/64 Inch Increments - Dual V-Groove Design for Round Stock and Corners Drill guide

Durable 100% Hardened Steel Construction, 25 Total Drilling Guides from 1/8” to 1/2” in 1/64” Increments.

Included Guide Sizes: 1/8”, 9/64”, 5/32”, 11/64”, 3/16”, 13/64”, 7/32”, 15/64”, 1/4", 17/64”, 9/32”, 19/64”, 5/16”, 21/64”, 11/32”, 23/64”, 3/8”, 25/64”, 13/32”, 27/64”, 7/16”, 29/64”, 15/32”, 31/64”, & 1/2"

Built-in Centering Guides for Easy Alignment, Dual V-Groove Design for Round Stock or Corners, Wide Body for Secure Clamping.