CCMT 09T304-HMP OS5835 Carbide Turning Insert

The CCMT 09T304-HMP OS5835 is a positive-rake carbide turning insert designed for finishing and semi-finishing applications in CNC and manual lathes. With its 80° diamond (C-shape) geometry and positive clearance angle, it reduces cutting forces, delivers smooth chip flow, and ensures excellent surface finishes. The 0.4 mm corner radius makes it ideal for precision work, providing dimensional accuracy and fine finishing in delicate machining tasks.

Produced in the OS5835 grade, this insert combines a fine-grained carbide substrate with a copper-colored PVD coating. It is versatile across steels, stainless steels, and cast irons, making it a reliable choice for general-purpose machining. The HMP chipbreaker is engineered for finishing and semi-finishing operations, ensuring stable chip evacuation, low cutting resistance, and improved surface quality under medium machining conditions.

The CCMT 09T304-HMP OS5835 is compatible with SCLCR and SCBCR tool holders, designed for positive-rake C-shaped inserts. It is widely applied in general engineering, mold making, and automotive industries where consistent finishing results and tool life are essential.

Code Breakdown:

• C – Insert shape: 80° diamond

• C – Clearance angle: 7° (positive rake)

• M – Tolerance class (medium)

• T – Insert with hole and chipbreaker

• 09 – Insert size: 9 mm

• T3 – Insert thickness: 3.97 mm

• 04 – Corner radius: 0.4 mm

• HMP – Chipbreaker for finishing/semi-finishing

• OS5835 – Grade for steels, stainless steels, and cast iron

Key Features:

• CCMT-style 80° diamond positive-rake insert

• Size: 9 mm, thickness 3.97 mm, radius 0.4 mm

• OS5835 grade – versatile carbide for steels, stainless steels, and cast iron

• HMP chipbreaker for finishing and chip control

• Positive rake for smooth machining and accuracy

• Fits holders: SCLCR, SCBCR

• Ideal for precision finishing operations

Grade Information (OS5835):

• Coating: PVD, copper color

• Application: turning and milling of steels (45#, Q235), stainless steels (304, 316), cast iron

• Best for: stainless steel turning and milling

• Material hardness: HRC <30

• Cutting speed: 120–220 m/min