Hex Head Bolt: 5/8-11, 5" Length Under Head, Alloy Steel, Grade B7 MPN:0155501

The Extension Tap 3/8-24 H8 is made from high-speed steel to ensure optimal performance and durability when tackling the toughest drilling applications. With a thread forming design, this tap is able to cut threads in blind holes or previously tapped holes without the need for backing them out. It features an uncoated finish that reduces friction and allows for efficient cutting, which saves time and minimizes wear on your materials. Its 8-flute design provides greater control and precision during use, making it perfect for aerospace, automotive, electronics, and machinery manufacturing industries where precision is key. The 24 degree tap angle ensures optimal threading, while the H8 shank ensures compatibility with most tapping machines and tools. All in all, this extension tap provides an essential tool for anyone looking to add threads to a variety of materials efficiently and accurately.