The SATA GL09402 is a professional-grade feeler gauge set crafted for accurate gap and clearance measurement in mechanical repairs, automotive diagnostics, and general servicing. It includes 16 finely calibrated manganese alloy steel blades ranging from 0.05mm to 1.00mm, each clearly marked for quick selection. Designed with angled blade tips, it allows access to tight or recessed spaces, making it highly efficient for valve adjustments, spark plug calibration, or shim clearance verification. The blades are organized in a compact fold-out steel holder, providing easy storage and smooth access to each gauge. Durable and corrosion-resistant, this tool is an essential precision instrument for both workshop professionals and DIY users. Specs Summary: Blades: 16 pieces (0.05mm to 1.00mm) Blade Length: 100mm (4″) Material: Manganese alloy steel Design: Angled ends for hard-to-reach areas Markings: Easy-read thickness etched on each blade Casing: Foldable steel holder for compact storage Applications: Automotive, MEP, mechanical inspections Model: GL09402 Weight: 0.11 kg Origin: China Color: Silver