Fowler 52-485-027-0 Screw Pitch Gage, 28 Blades 4-56"/0.50-6.00mm

Item Description 28 Blades Inch 4-56 pitch and metric 0.50-6.0mm Narrow designed blades permit use for internal and external screw threads Locking device at each end to secure all blades for storage or position Correct pitch is determined by matching blade teeth with threads Precisely ground and finished Blades marked with thread size *Image shown for representational purposes only California Residents Proposition 65 WARNING: This product can potentially expose you to chemicals including Chronium, Lead and Nickel which are known to the State of California to cause cancer, birth defects or other reproductive harm.