
Drilling tools | CoroDrill® 860 CoroDrill® 860 Optimized drilling solution CoroDrill® 860 designed for high process security and reliable, high‑pro- ductivity drilling, maximizing output through optimized performance. With excellent chip evacuation in long and short chipping materials, CoroDrill® 860 provides green light machining at high penetration rates. Features and benefits — Tough carbide material combined with dedicated micro geometries improve tool strength, reliability and process security — Refined cutting edges reduce cutting forces and improve chip control — Optimized flute shape ensures good chip formation, flow and evacuation — Body tolerance m7 — Achievable hole tolerance H8–H9 — Tailor Made® options and advanced engineered tools offer extensive oppor- tunities to optimize your tooling 860-GM 860-PM 860-MM — For short holes primarily in steel, — For long- and short-chipping — For long-chipping stainless steel stainless steel, cast iron and steel materials materials hardened material — Diameter range 3–20 mm — Diameter range 3–20 mm — Diameter range 3–16 mm (0.118−0.787 inch) (0.118–0.787 inch) (0.118–0.629 inch) — Drilling depth 3–8×DC — Drilling depth 3–5×DC — Drilling depth 3–8×DC — Internal and external coolant — Internal coolant — Single- and two-diameter tools — Single diameter and drill cham- — Single diameter tools fering tools 860-SM 860-SD 860-NM — For titanium — For nickel-based HRSA alloys — For non-ferrous materials — Diameter range 3–16 mm — Diameter range 3–16 mm — Diameter range 3–20 mm (0.118–0.629 inch) (0.118–0.629 inch) (0.118−0.787 inch) — Drilling depth 3–5×DC — Drilling depth 3–8×DC — Drilling depth 3–8×DC — Single diameter tools — Single diameter tools — Internal coolant 327