CNMG120408TK PR1535 (TLC40060)

The CNMG120408TK PR1535 is a robust indexable turning insert combining the versatile TK open-groove chipbreaker with the highly tough PR1535 PVD-coated carbide grade. This combination makes it an excellent choice for medium to rough turning in steel and stainless steel where both reliable chip breaking and resistance to edge fracture are required. The wavy, open-groove TK chipbreaker geometry — clearly visible in the image — ensures effective chip evacuation across a broad range of feed rates and depths of cut.

Key Features

• Insert shape: C (80° diamond) — 2 cutting edges per insert
• Size: 12mm x 04mm thickness x 08 nose radius (0.8mm)
• Chipbreaker: TK — wide, open-groove geometry for consistent chip breaking in medium-rough turning
• Grade: PR1535 (PVD-coated carbide) — high toughness for interrupted cuts and demanding conditions in steel
• ISO application: P20–P40, M20–M35
• Edges: 2 cutting edges

Applications

Medium to rough external and internal turning, facing, and boring of carbon steel, alloy steel, and stainless steel, including interrupted cuts and operations with surface scale. Compatible with CNMG-style toolholders. Available in packs of 10.