The Vortex HSS Slitting Saw is a precision tool built for machinists who need reliable slotting performance in tight spaces. This 40 mm diameter, 1 mm thick, 8 mm bore, 64‑tooth saw delivers consistent, efficient cuts for narrow slots and keyways in metalworking applications. Diameter: 40 mm Kerf (width): 1 mm Bore: 8 mm Teeth: 64 Material: High‑Speed Steel (HSS) body with a bright finish; designed to DIN stock standards Coarse pitch: Optimized for fast material removal in slotting operations Ground to bore: Hollow ground to provide side clearance and reduce rubbing Kerf tolerance: ±0.001 in (tight, consistent cuts) Designed for durability and precision, this slitting saw balances rigidity and efficient chip removal. The hollow ground bore reduces edge rubbing, helping maintain accurate slot widths while the 64 teeth strike a steady balance between speed and smoothness. With an 8 mm arbor bore, it fits standard milling machines and slitting saw setups, making it a dependable choice for metalworkers tackling small-diameter slots in steel, aluminum, and other common metals.