Starrett 50649 Parallel Feeler Gage Set 9 Piece

Product Description

The STARRETT 50649 is a 9-piece parallel feeler gage set designed for precise gap measurement in mechanical assembly, engine work, and equipment maintenance. Each leaf is ground from tempered steel to hold tight dimensional tolerances across the full thickness range of 0.0015 to 0.015 inches. The leaves measure 3.03 inches in length and 0.5 inches in width, with a parallel profile that keeps the full blade width consistent from tip to pivot. This set is used by machinists, mechanics, and millwrights wherever accurate clearance measurement is required.

This feeler gage set is suited to residential and commercial maintenance applications including valve clearance checks, spark plug gap verification, bearing clearance measurement, and machinery alignment tasks. The parallel leaf style makes it especially effective when a consistent contact surface is needed across the full length of the blade. Nine graduated leaves cover the most common clearance increments used in general mechanical work.

Key Features

• 9 parallel leaves in tempered steel for durability and dimensional stability
• Thickness range from 0.0015 to 0.015 inches covers common mechanical clearances
• Leaf length of 3.03 inches and width of 0.5 inches for consistent contact area
• Parallel leaf style maintains uniform width from tip to handle
• Nine individual thicknesses: 0.0015, 0.0020, 0.0030, 0.0040, 0.0060, 0.0080, 0.0100, 0.0120, and 0.0150 inches
• Catalog industry number 172A for cross-reference ordering

Compatibility

Designed as a general-purpose parallel feeler gage set for use in mechanical, automotive, and industrial maintenance applications where gap measurements within the 0.0015 to 0.015 inch range are required.

Installation Notes

Feeler gages are a hand measurement tool requiring no installation. Always clean leaf surfaces before use to prevent contamination from affecting measurement accuracy. Store leaves folded and secured to prevent bending or nicking the edges, which can compromise readings. Do not force leaves into tight gaps; select the appropriate thickness and slide the leaf in with light drag resistance as the target fit condition.