Long-Blade Feeler Gauge Set Blade Style Long Blade Rounded Edge Included Certification None Number of Feeler Blades 12 Thickness Range 0.0015 in to 0.02 in Tolerance 0.0015 in to 0.003 in +0.0002 in/-0.00012 in 0.004 in to 0.01 in +0.0003 in/-0.0002 in 0.012 in to 0.02 in +0.0005 in/-0.0003 in Color Silver Included Blades 0.0015 in 0.002 in 0.003 in 0.004 in 0.005 in 0.006 in 0.008 in 0.01 in 0.012 in 0.014 in 0.015 in 0.02 in Locking Device Yes