4 Flutes, 3/4" Cutter Head Diam, 5/16" Pilot Hole Diam, High Speed Steel Reverse Countersink MPN:180-9K

The high speed steel reverse countersink is a professional-grade tool specifically designed to create pilot holes or recesses in metal materials prior to screw insertion or attachment. It features four flutes which promote quick and efficient drilling, along with an unparalleled finish on non-ferrous metals such as aluminum, brass or copper. With a 3/4 cutter head diameter, this countersink can handle larger holes for thicker materials while its 5/16 pilot hole diameter offers greater accuracy and control. Ideal for industries such as aerospace or automotive where precision is key, it offers a durable, high-performing solution at an affordable price.