OM154-77-3/32 HSS 120 Degree Piloted Aircraft Countersink Cutter, 1/2” Diameter are meticulously engineered and designed to create precision countersinks for flush-head fasteners. Constructed with a 1/2” body diameter, these cutters are made from high-speed steel, providing less wear-resistance compared to carbide with more durability, making them less prone to chipping and breaking. They feature an 120° cutting angle and a 1/4-28 thread, making them compatible with a variety of microstop cages that accept 1/4-28 threaded shank cutters. These cutters are indispensable in aviation and other high-precision industries where exact countersinking is critical.

The design of OM154-77-3/32 HSS 120 Degree Piloted Aircraft Countersink Cutter, 1/2” Diameter is specifically tailored for countersinking holes intended for 1/2” or smaller diameter fasteners. It is crucial that the diameter of the flush fastener heads does not exceed 1/2” to ensure proper seating and optimal performance of the screws. The precision-ground cutters adhere to stringent tolerances, guaranteeing concentricity and consistent, reliable results with every use. This precision is essential for maintaining the integrity and safety of the assembled components, particularly in aerospace applications.

In addition to their precise manufacturing standards, OM154-77-3/32 HSS 120 Degree Piloted Aircraft Countersink Cutter, 1/2” Diameter offer versatility and ease of use. They can be employed in any microstop cage that accommodates 1/4-28 threaded shank cutters, making them a versatile addition to any toolkit. The combination of high-speed steel construction, precise engineering, and compatibility with standard microstop cages makes these cutters an essential tool for professionals seeking accuracy and reliability in their countersinking tasks.