The BORDO 55mm 90 degree 4 flute HSS countersink with universal shank is a precision cutting tool designed for metalworking professionals and machinists. It is engineered to create accurate countersinks for screws and fasteners, ensuring flush and clean finishes in various fabrication and assembly applications.

Constructed from high-speed steel (HSS), this countersink offers durability and excellent cutting performance on a range of materials including steel, aluminum, and other metals. The 4 flute design enhances cutting efficiency and surface finish quality, while the 90 degree angle is ideal for standard countersinking tasks. The universal shank allows compatibility with most drilling machines and tool holders, providing versatility in workshop environments.

Key features include:

• 55mm diameter for large countersinking operations
• 90 degree cutting angle suitable for standard screw heads
• 4 flute design for smooth and precise cutting
• High-speed steel construction for long tool life
• Universal shank for broad machine compatibility