MCFNR2525K12 External Turning Tool Holder

The MCFNR2525M12 turning toolholder is a robust external turning holder designed for CNMG 1204 negative inserts. Featuring a 25 × 25 mm shank and a 91° cutting edge angle, this toolholder is optimized for external turning, facing, shoulder machining, and general-purpose roughing and semi-finishing operations. Its rigid construction and secure clamping system provide excellent insert stability under demanding cutting conditions. The holder is designed to withstand high cutting forces, making it suitable for machining steel, stainless steel, cast iron, and other engineering materials. The negative insert geometry allows the use of double-sided inserts with multiple cutting edges, reducing tooling costs and increasing productivity. The MCFNR2525M12 turning toolholder is particularly effective for machining shoulders and end faces where accurate 90° features are required. Its proven clamp design ensures reliable insert retention, excellent chip control, and long service life in CNC and conventional turning applications. Specifications: • Shank Size: 25 × 25 mm • Holder Style: MCFNR • Insert Type: CNMG 1204 • Cutting Edge Angle: 91° • Hand: Right-Hand • Overall Length: 150 mm • Application: External Turning & Facing Compatible Inserts: • CNMG 120404 • CNMG 120408 • CNMG 120412 Recommended Diamond Cut Grades: • CNMG 120408-TM OS8235 • CNMG 120412-TM OS8225 • CNMG 120408-MM OS5105 • CNMG 120408-TM OS8126 The MCFNR2525M12 turning toolholder delivers excellent rigidity, reliable chip evacuation, and consistent machining performance, making it an ideal choice for production machining, maintenance workshops, and general engineering applications.