SPI Drill Gages, Made in USA

Fractional:

• 29 measuring holes for determining twist drill sizes from 1/16″ to 1/2″ in 1/64″ increments. Shows drill sizes in inches and decimal equivalents.

Wire:

• Used to gage and select the correct twist drill and steel drill rod. Each hole shows the size number and the corresponding decimal equivalents.

Letter:

• Used to select or check drill sizes from A – Z. Each hole is marked by letter and its decimal equivalents from 0.234″ though 0.413″ diameter

Features:

• Made of heavy gage steel, machined and ground to close tolerances
• Holes sizes and decimal equivalents steel stamped

Specifications:

Item Number 30-232-3 30-233-1 30-234-9 Type Fractional Wire Gage Letter Minimum Hole Size (Inch) 1/16″ #60 A Maximum Hole Size (Inch) 1/2″ #1 Z Number of Holes 29 60 26