25 pc SAE and Metric Master Feeler Gauge Set - J.H. Williams

The J.H. Williams JHWGS-1 Master Feeler Gauge Set provides professional technicians and mechanics with the precision required for accurate gap measurement across a broad spectrum of automotive and industrial applications. This 25-piece set delivers a comprehensive selection of both SAE (decimal) and equivalent metric blade thicknesses, enabling critical adjustments for diverse engine and machinery components. Designed for enduring performance, this set is an essential instrument for any professional toolkit.

Key Features

• Comprehensive Measurement Range: Includes 25 precision-ground blades, covering thicknesses from .0015" to .035" and their metric equivalents, to meet a wide array of specification requirements.
• Dual-Marked Blades: Each blade is clearly etched with both its SAE decimal and corresponding metric size, facilitating quick identification and adaptability for various international specifications.
• Optimized Blade Access: Blades measure 3-5/16" in length and 1/2" in width, engineered to provide effective access into confined spaces while maintaining the necessary rigidity for accurate measurement.
• Secure Blade Retention System: Features a durable holder equipped with a knurled lock-nut, ensuring individual blades are securely selected and held in position throughout measurement tasks.
• Professional-Grade Durability: Manufactured by J.H. Williams, a reputable name in high-quality industrial tools, guaranteeing long-lasting accuracy and reliable performance in demanding workshop environments.

Applications

This master feeler gauge set is an indispensable tool for performing accurate measurements and precise adjustments in various professional scenarios, including:

• Setting valve lash clearances on internal combustion engines.
• Measuring spark plug gaps for optimal ignition system performance.
• Checking piston ring end gaps to ensure proper sealing.
• Determining bearing clearances within engine and machinery assemblies.
• Verifying critical component spacing in gearboxes, transmissions, and other industrial equipment.

Specifications

• Number of Blades: 25
• Blade Dimensions: 3-5/16" L x 1/2" W
• Thicknesses (SAE): .0015, .002, .003, .004, .005, .006, .007, .008, .009, .010, .011, .012, .013, .014, .015, .016, .018, .020, .022, .024, .025, .028, .030, .032, .035
• Markings: Decimal (SAE) and equivalent Metric etched on each blade