Blade Thickness: Each measuring blade is clearly marked with corresponding thickness from 0.02mm to 1mm. High Quality: These 17 blades feeler gauge is made of high quality stainless steel, sturdy and durable. Wide Range of Applications - Suitable for designers, engineers, mechanics to measure the thickness of the faucet gap, spark plug clearance, bearing clearance, piston ring clearance and other hard to reach places. Easy to Replacement: The blades are fixed with metal screw, convenient replacement of blades after removing the screw. After Sale Guarantee: We care for every customer's feeling. If this product does not meet or exceed your expectations, please do contact us first, we will solve the problem immediately., Manufacturer: Hilitand