Description of Irwin π§ Tools 2640-Piece Carbon-Steel Set
Ideal for auto repair and machinery. Convenient plastic pouch puts all the necessary taps at your finger tips. Each set includes 1 taper, bottoming and plug tap in the specified size. High Carbon Steel Construction for Durability.
Ideal for fitting -4AN fittings to an aluminum throttle body. These are pretty good faucets, definitely an improvement over the cheap faucet sets, no sticking or damage issues.
Used these to drill 14 holes in the frame of my JK Jeep Wrangler to install some LoD Rock Sliders. Used a 10 hole cone bit until it started losing bite and wear. Finished with a plug for the last 4 holes to finish the job. Worth every penny. Product made in the USA.