Starrett 186 Drill & Wire Gage Set Numbers 1-60

The Starrett 186 is a precision drill and steel wire gage covering the full Number 1 through 60 drill wire gage range. Manufactured by L.S. Starrett, a trusted leader in precision measurement tools, this gage provides machinists, toolmakers, and engineers with a quick and accurate method for identifying drill bit sizes and wire diameters without the need for calipers or micrometers.

The 186 features a series of precisely sized, hardened and ground holes arranged sequentially, allowing users to determine the exact wire or drill size by finding the smallest hole that a given wire or drill shank passes through. This makes it an indispensable shop tool for quality control, wire sizing, and drill identification.

Key Features:

• Covers Number Wire Gage sizes 1 through 60
• Hardened steel construction for long-lasting durability and wear resistance
• Precisely drilled and reamed holes for accurate size identification
• Compact, flat profile for easy storage in a toolbox or on a workbench
• Each hole clearly stamped with its corresponding gage number
• Suitable for both drill bit shank sizing and steel wire diameter measurement
• Manufactured to Starrett's strict quality and accuracy standards

The Starrett 186 Drill & Steel Wire Gage is a go-to reference tool for machine shops, fabrication facilities, and toolrooms. It eliminates guesswork when identifying unmarked drill bits or verifying wire sizes, helping maintain precision and consistency in manufacturing and repair applications.