TPKN1603 Milling Inserts

The TPKN1603 Milling Inserts are triangular carbide inserts designed for face milling, shoulder milling, and general-purpose cutting. Manufactured from a fine-grain carbide substrate with advanced coating technology, the TPKN1603 Milling Inserts deliver excellent toughness, wear resistance, and long service life. With their 60° triangular geometry, the TPKN1603 Milling Inserts provide three strong cutting edges, ensuring cost efficiency and stability in steels, stainless steels, and cast irons.

These inserts are commonly used in indexable face mills and shoulder milling cutters. The negative rake geometry increases edge strength and stability during heavy-duty machining, while the sharp cutting edges ensure smooth chip evacuation and reliable performance in semi-finishing operations. Their versatility makes them suitable for both roughing and semi-finishing applications.

The TPKN series is widely applied in automotive, aerospace, mold-making, and heavy engineering industries where high productivity and repeatable performance are critical.

Code Breakdown

• T – Insert shape: Triangle (60°)

• P – Relief angle / insert style

• K – Insert geometry designation

• N – Negative relief, multiple edges usable

• 16 – Insert size: 16 mm IC

• 03 – Insert thickness: 3.18 mm

Key Features of the Milling Inserts

• Triangular 60° design with 3 effective cutting edges

• High-performance carbide substrate with protective coating

• Strong negative rake for heavy-duty milling

• Reliable in steels, stainless steels, and cast irons

• Cost-efficient and versatile for face milling and shoulder milling

Equivalent Milling Inserts (Other Brands)

• Sandvik: TPKN1603 1105 (Sandvik official site)

• Seco: TPKN1603 F30M

• Kennametal: TPKN1603 Beyond series

• Iscar: TPKN1603 IC328

Application Guidelines

• Cutting speed (steel): 150–260 m/min

• Depth of cut: 0.5–3.5 mm

• Feed per tooth: 0.1–0.4 mm

• Applications: face milling, shoulder milling, slotting

For TPKN inserts and other indexable milling solutions, visit our Diamond Cut store.