The STI Tap RH M 4.0 X 0.70 D1 B from Field Tool Supply is a right-hand thread tap designed for M4 applications. With a diameter of 4.0 mm and a pitch of 0.70 mm, this tap is ideal for creating precise internal threads in various materials. The D1 designation indicates its design for optimal chip removal and reduced friction, enhancing drilling efficiency. Made from high-speed steel, this tap offers durability and consistent performance. It is suitable for use in automotive, machinery, and general engineering applications, meeting industry standards for quality and reliability.