Review on Maximize Efficiency with Madison Electric Products Greenlee Making by Jonathan Lamp

The quality of this product is excellent I have been using Greenlee for many years and have always been satisfied with the quality of the tools especially this tap Provide the best possible life- tool service. Pre-drill a hole the size you are going to cut. then tap everything even though it says you don't have to, that will extend the life of the bit DTAP1/4-20 Combination Drill and Tap, 1/4-20NC.