Pipe and Conduit Thread Tap, Thread Size 1-1/2 In.-11 1/2, NPT, Overall Length 4 1/4 in, High Speed Steel, Bright (Uncoated), Right Hand, Thread Length 1 3/4 in, 75 Percent Thread Drill Size 1.7188 in, Number of Flutes 7
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzes reviews to verify trustworthiness.