Thread Gauge 3/8-20 BSF SRRTG3820 S.U.R. and R Auto Parts

Features and Benefits:

• (3/8" - 20 BSF) - Makes Measuring Fittings Simple, Accurate and Fast
• Universal Applications - Measure On or Off the Vehicle
• Each Fitting Includes Male and Female Threads
• 16 Thread Sizes (Metric and Imperial)
• Etched Part Number and Size Information