Combination gauge for the setting of valve tappets on motorcycles, mowers, cars, vans, etc. The dual marked blades are 95mm long and offset to give improved access to the engine and are hardened and polished for long accurate life. Each blade is marked with its size and folds into a polished steel case with thumbscrew. Features and BenefitsBlades: dual marked 0.203mm/0.008" to 0.660mm/0.026"95mm long taper blades, hardened and polished for long accurate life Contents 12 x Metric blades: 0.203, 0.254, 0.305, 0.330, 0.356, 0.381, 0.406, 0.457, 0.483, 0.508, 0.635, 0.660mm 12 x Imperial blades: 0.008, 0.010, 0.012, 0.013, 0.014, 0.015, 0.016, 0.018, 0.019, 0.020, 0.025, 0.026