there might be a few bits (1-3) replaced with different brand feel free to ask for more details. The Vintage Snap-on TD-2425 Fractional / Machine Screw Tap and Die Set is a high-quality and durable set of threading tools perfect for automotive and industrial applications. Made by Snap-on Tools in the United States, this set includes 41 pieces of SAE taps and dies in a convenient red case. The manufacturer part number TD2425 ensures authenticity and compatibility with various fractional and machine screw sizes. While this set does not come with a warranty, it is a reliable and trusted choice for professionals and enthusiasts alike.