Carbide inserts are the backbone of modern CNC machining, and among them, D (55° Diamond) inserts stand out for their versatility, precision, and durability. With a 55° diamond shape, these inserts strike the perfect balance between strength and sharpness, making them highly efficient for turning, facing, contouring, and profiling operations across different industries.

At CNC Tools Depot, the world’s largest marketplace for cutting tools, we offer an extensive range of D-style carbide inserts from leading global brands like Korloy, Kennametal, Widia, Taegutec, Sandvik, Seco, and more.

🔹 Key Features of D (55° Diamond) Inserts

• Shape: Diamond-shaped insert with a 55° included angle.

• Cutting Edge: Offers an ideal balance between edge strength and accessibility to tight spaces.

• Versatility: Suitable for a wide range of finishing, semi-finishing, and light roughing operations.

• Durability: Made with premium carbide grades, providing excellent heat resistance and wear resistance.

• Compatibility: Available in multiple insert codes like DCMT, DNMG, DNMA, DCGT, DNGG, etc.

🔹 Applications of D (55° Diamond) Carbide Inserts

D-shaped inserts are highly versatile and widely used in:

1. Turning Operations – For precision machining on CNC lathes.

2. Profiling & Contouring – Perfect for complex shapes and smooth finishes.

3. Facing Operations – Excellent for machining flat surfaces.

4. External & Internal Machining – Works well for boring and OD turning.

5. Steel, Stainless Steel & Cast Iron – Optimized for multiple material groups with appropriate grades.

6. Finishing & Semi-Finishing – Produces a fine surface finish with stability.

🔹 Types of D (55° Diamond) Inserts

D-style inserts come in different ISO designations depending on chipbreaker style, rake angle, and tolerance. Popular types include:

• DCMT Inserts – Positive rake inserts for finishing and light cutting.

• DNMG Inserts – Negative rake inserts for heavy-duty cutting and long tool life.

• DCGT Inserts – Ultra-sharp edges for aluminum and non-ferrous machining.

• DNGG Inserts – Precision inserts with superior surface finishing capabilities.

• DNMA Inserts – Strong, uncoated inserts for heavy-duty roughing.

🔹 Why Buy from CNC Tools Depot?

✔ World’s Largest Selection – All major brands in one place.
✔ Competitive Pricing – Best deals on carbide inserts.
✔ Global Brands – Korloy, Kennametal, Taegutec, Widia, Sandvik, Seco & more.
✔ Expert Support – Helping machinists choose the right insert for their application.
✔ Fast Shipping – Serving manufacturers, workshops, and CNC job shops worldwide.