Lead angle 0°/ 2° MSR / MSR-BT50 High efficiency heavy milling BT50 integral arbor type PR1230 (For steel) Low cutting force type PR1210 (For cast iron) Notched insert reduces cutting force, and enables high feed rates by reducing chattering. Improved chip evacuation and low cutting force with the special chipbreaker. Enables heavy milling and deep cutting, and also drastically improves machining efficiency. (Reduction of cutting time) Notched insert Size comparison (full-scale) M Notch Notch Milling 11 type 17 type APMT25 type Cutting force comparison MSR Competitor A 5,000 124% 5,028N 4,000 Cutting force (N) 4,066N 3,000 2,000 Combined Force Combined Force 1,000 0 * The exclusive notched chipbreaker provides low cutting force and good chip evacuation. (Internal evaluation) M112