This set includes 3 L-type and 1 T-type valve adjustment tools, along with a 32-blade feeler gauge. All five pieces come in a convenient plastic box for easy storage, transportation and immediate accessibility. perfect for individuals and professionals who require efficient valve adjustment solutions. Quality Feeler Gauge: Made from high-quality #65 manganese steel, this 32-blade feeler gauge is hardened and polished for smooth handling, void of hand injuries. Versatile Wrench Sizes: The T-type wrench features square hole sizes of 4mm, 3mm and 3.5mm, while the L-type wrenches offer hex sizes of 8mm, 9mm and 10mm and square sizes of 3.1mm, 3mm and 3.5mm. With such range, they can efficiently adjust both hexagonal and square screws, making the set a versatile addition to your toolbox. Robust Construction: Crafted from wear- metal, the valve screw spanners underwent a heat treatment process for enhanced durability. Rust- and designed not to deform, these tools offer , assuring users of a long-term, reliable valve adjustment solution. Your trust in our product is our priority. Each blade indicates both metric and imperial scales, allowing for easy reading. Its measure ranges from 0.04mm - 0.88mm/0.0015 inch - 0.035 inch, making it suitable for a variety of industries, including aerospace, automotive, pharmaceutical, and oil and gas., Weight: 0.88405367062 pounds, Manufacturer: Aisuoka