10pc Kyocera CNMG120404PMG CA125P – Turning Insert (Medium-Roughing, PMG Chipbreaker)

Kyocera CNMG120404PMG CA125P – Turning Insert (10 pcs Medium-Roughing, PMG Chipbreaker)

The Kyocera CNMG120404PMG CA125P is a negative-type turning insert for medium to roughing operations in steel machining. It uses Kyocera’s PMG chipbreaker, engineered for excellent chip control and longer tool life across a wide cutting range, with step-breaker geometry that suppresses chip entanglement even at larger depths of cut. Internal evaluations in the catalog show tool life improvements of up to 4× versus competitor grades.

Key Features & Benefits

• PMG chipbreaker: Covers a wide machining area from medium to roughing with stable chip control.
• Long tool life: Up to 4× longer tool life vs. competitor inserts (catalog internal evaluations).
• Stable performance: Consistent, small chip shapes; reduced rake-face temperature and wear.
• Versatile use: Suitable for continuous to interrupted steel cutting.

Applications

• Steel machining from medium cuts to roughing.
• Continuous to interrupted turning (e.g., shafts, gears, bolts, automotive parts as shown in case examples).
• Example cutting windows from catalog evaluations: Vc ~190–300 m/min, ap ~0.5–5.0 mm, f ~0.1–0.5 mm/rev (materials such as SCM435, SCr420).

Technical Specifications

• Designation / Order Code: CNMG120404PMG
• Chipbreaker: PMG (Medium-Roughing)
• Type: Negative insert
• Inscribed Circle (IC): 12.70 mm
• Thickness: 4.76 mm
• Hole Diameter: 5.16 mm
• Corner Radius (RE): 0.4 mm
• Pack Size: 10 pieces