KEUE CNC Small Diameter Tungsten Steel Boring Tool SBPR5 20L R0.1 4mm Solid Carbide Centering Inner Hole Knife Stainless Boring
SBPR solid carbide small‑hole boring tool is built with premium tungsten carbide substrate and high‑aluminum nano coating. This SBPR5‑20L‑R0.1 model features 5 mm shank diameter, 20 mm cutting depth and R0.1 nose radius, specially developed for Swiss‑type lathe inner‑hole turning work.
High‑aluminum nano coating brings excellent heat resistance and anti‑wear property, suitable for steel and stainless steel below HRC50. Precision ground cutting edge effectively restrains vibration, delivers smooth inner‑hole surface and stable dimension accuracy in fine boring processes.
Optimized structure adapts well to small‑diameter inner‑hole tasks on walk‑through machines. It maintains stable performance under long‑time continuous cutting, reduces tool replacement times. Greatly improves processing consistency for mass‑production precision component workshops.
