Spi 13-658-0 Stainless Steel Center Gage 60 Degree

Product Description

The SPI 13-658-0 is a 60-degree center gage machined from stainless steel, used to accurately set and check thread-cutting tool angles on lathes and milling machines. The gage features graduations from 1/32 to 1/14 inch, allowing machinists to verify center angles with consistent precision. At 0.5 pounds, it is a lightweight bench tool that holds up to repeated shop use without corrosion. Machinists, toolroom operators, and maintenance technicians rely on this style of gage when setting up threading operations or inspecting V-thread profiles against a reference standard.

The 13-658-0 center gage is suited for use in machine shops, toolrooms, and maintenance facilities where thread-form verification and lathe tool alignment are routine tasks. It is appropriate for both production environments and job-shop setups where 60-degree unified or metric V-thread profiles are common. The stainless steel construction makes it a durable choice for environments where tool longevity and dimensional stability matter.

Key Features

• 60-degree angle geometry for standard unified and V-thread profile verification
• Graduations from 1/32 to 1/14 inch for direct comparison during tool setup
• Stainless steel construction resists corrosion and maintains dimensional stability
• Lightweight at 0.5 pounds for easy handling at the lathe or bench
• Sold individually, no minimum bundle required

Compatibility

Designed as a standard 60-degree center gage suitable for setting and checking threading tool angles on conventional lathes and thread-milling setups where a 60-degree V-thread form is required.

Installation Notes

This is a hand-held reference gage and does not require installation. Before use, ensure the lathe or milling machine is powered off and the spindle is locked when setting tool angles. Clean mating surfaces and the gage itself before use to prevent measurement error from chips or debris. Store the gage in a protective case or on a dry surface to preserve its calibrated edges.