Drill Gauge (No. 1 to No. 60) - General Tools & Instruments

The General Tools & Instruments Model 15 Drill Gauge is a precision instrument engineered for professional technicians and mechanics. This robust tool accurately identifies number size drill bits from No. 1 to No. 60, proving essential for maintaining drilling accuracy across a wide spectrum of automotive and industrial applications, particularly when working with unmarked or worn bits.

Key Features

• Accurately identifies drill bits ranging from No. 1 to No. 60, covering a broad spectrum of common sizes.
• Constructed from heat-treated, heavy-gauge steel, offering professional-grade durability and extended service life in demanding workshop environments.
• Features precision-machined and ground holes, ensuring consistent and exact bit identification with close tolerances.
• Equipped with permanent, etched markings that clearly display both hole sizes and their corresponding decimal equivalents for long-term readability.

Applications

This professional-grade drill gauge is an indispensable asset in various settings, from general workshops to critical fabrication environments. Technicians can utilize it to efficiently sort and identify loose or stray drill bits, verify the accuracy of new or existing cutting tools, and confirm precise hole diameters required for tapping operations or fastener installation. Its heavy-duty construction makes it particularly well-suited for the rigorous demands of industrial settings and busy automotive repair shops, where precision and consistent accuracy are paramount for quality workmanship.

Specifications

• Dimensions: 6-1/2” x 2-1/2”
• Compliance: Conforms to government specifications GG-G-86b