Aloris Boring Bar is a Cutting Tool used in machining operations to enlarge and finish holes that have already been drilled or cast. It is designed to fit into the spindle of a lathe or a milling machine and is used to cut or remove material from the inside of a workpiece.Boring Bars can be used in a variety of applications, including drilling, reaming, facing, and chamfering. They are commonly used in the automotive, aerospace, and manufacturing industries to produce engine blocks, cylinders, and other precision parts.

Aloris ATB Series Threading Bars deliver unmatched accuracy for internal right-hand or left-hand threading operations. Engineered for precision and durability, each bar is compatible with standard triangular throwaway threading inserts seated in a hardened insert pocket for maximum stability and cutting performance.

Available in five versatile sizes, the ATB shank features a three-flat design , purpose-built to fit seamlessly into Aloris Boring Bar Holders #1, #2, #13, #4, and #41 — and fully compatible with any Aloris boring bar holder. Perfect for high-demand CNC machining, these threading bars ensure rigidity, alignment, and superior surface finishes in every pass.

👉 Optimize your threading operations with Aloris Boring / Threading Bars – precision tooling trusted by machinists across the USA.