Features 1、Excellent Drilling Performance: This countersunk drill bit set features M2 HSS tapered guide bits, ensuring an accurate grip and universal compatibility suitable for #10 screws and 82° countersinks. 2、Robust Materials: Our 82° tungsten carbide countersunk and hole cutting edgings provide smoothly, no burr performance, suitable for both US standard sheet metal and machine screws. 3、Adjustable Depth Control: With hex screws and a depth control stop, both drilling and countersink depths can be easily adjusted, offering maximum versatility for various applications. 4、Versatile Application: Designed for a wide range of materials, this set excels at cutting through nature wood, MDF, plywood, aluminum, non ferrous metals, and HDPE with ease. 5、Complete Tool Set: Equipped with an extra stop collar, wrench, and a storage case, this kit enhances performance and convenience for seamless use in any workshop environment. Specification Item Type: 4 Flute Drill Bit Material: Alloy Steel Size: 1/8in Package List 1 x Drill Bit 1 x Wrench 1 x Storage Box