Measures spark plug gaps from .015 to .045 (.381 to 1.143mm). Double-ended tool included for adjusting electrode. Wire Sizes: Inches Millimeters Inches Millimeters Inches Millimeters .020 .508 .030 .762 .035 .889 .025 .635 .032 .813 .040 1.016 .028 .711 .034 .864
Measures spark plug gaps from .015 to .045 (.381 to 1.143mm). Double-ended tool included for adjusting electrode. Wire Sizes: