Starrett 50652 Tapered Feeler Gage Set 8 Piece

Product Description

The STARRETT 50652 is an 8-piece tapered feeler gage set designed for precise gap measurement in mechanical assembly, engine work, and equipment maintenance. Each leaf is manufactured from tempered steel and tapers from 1/4 inch to 1/2 inch in width, giving technicians better access to tight clearances. The set covers a measurement range of 0.002 to 0.015 inches across eight individual leaves, with a closed length of 6 inches that keeps the set compact and portable. HVAC technicians, machinists, and equipment mechanics rely on feeler gages like this one for tasks that require repeatable, accurate gap checks without electronic tooling.

This set is suited for residential and light commercial service work where gap tolerances must be verified by hand. Common applications include setting valve clearances, checking spark plug gaps, measuring bearing clearances, and verifying burner or electrode spacing on gas-fired equipment. The tapered leaf profile allows the gage to enter angled or partially obstructed gaps that parallel-leaf sets cannot reach. The 6-inch leaf length provides enough reach for most under-panel and inline service points without requiring disassembly of surrounding components.

Key Features

• 8 tempered steel leaves covering 0.002 to 0.015 inches in a single set
• Tapered leaf style (1/4 to 1/2 inch wide) for access to angled and restricted clearances
• 6-inch leaf length suitable for standard service reach
• Thicknesses included: 0.002, 0.003, 0.004, 0.006, 0.008, 0.010, 0.012, and 0.015 inches
• Tempered steel construction for durability and resistance to deformation under repeated use
• Compact closed length of 6 inches for tool bag or kit storage

Compatibility

Designed as a general-purpose tapered feeler gage set suitable for mechanical, HVAC, and equipment maintenance applications requiring gap measurements in the 0.002 to 0.015 inch range.

Installation Notes

Feeler gages are a hand measurement tool and do not require installation. Always power down, de-energize, or shut off fuel supply to any equipment before inserting a feeler gage into a live or pressurized assembly. Clean the gage leaves before and after use to prevent contamination of precision surfaces. Do not force a leaf into a gap narrower than its marked thickness, as this can deform the leaf and introduce measurement error.