Drilling Inserts are specialized carbide cutting inserts designed for high-precision hole-making operations on CNC machines. Unlike conventional twist drills, drilling inserts are indexable and replaceable, making them a cost-effective solution for machining industries. They are widely used in automotive, aerospace, mold & die, general engineering, and heavy machinery manufacturing where accuracy and productivity are critical.

At CNC Tools Depot, we offer a complete selection of drilling inserts from top global brands such as Korloy, Widia, Kennametal, Taegutec, Mitsubishi, Sandvik, and Seco Tools – ensuring maximum performance, durability, and efficiency.

Key Features of Carbide Drilling Inserts

• High Wear Resistance – Manufactured from premium carbide for long tool life.

• Replaceable Cutting Edge – Indexable inserts reduce downtime and tooling costs.

• Excellent Heat Resistance – Coated inserts withstand high cutting temperatures.

• Versatile Applications – Suitable for steels, stainless steels, cast iron, non-ferrous metals, and super alloys.

• Consistent Hole Quality – Ensures dimensional accuracy and surface finish.

Applications of Drilling Inserts

Drilling inserts are commonly used for:

• General Hole Making – Standard drilling operations on CNC machines.

• Deep Hole Drilling – With specialized geometries for stability and chip evacuation.

• Pilot Hole Drilling – Preparing holes for tapping, reaming, or boring.

• Heavy-Duty Drilling – For hard-to-machine materials like Inconel, titanium, and hardened steels.

• High-Speed Drilling – Optimized cutting edges for high spindle speed operations.

Types of Drilling Inserts

At CNC Tools Depot, you can find multiple types of drilling inserts to suit different machining needs:

1. Positive Rake Drilling Inserts

• Light cutting action.

• Best for softer materials and high-speed drilling.

2. Negative Rake Drilling Inserts

• Strong edge strength for heavy-duty drilling.

• Ideal for hard materials and interrupted cuts.

3. Single-Sided Drilling Inserts

• Cost-effective option with fewer cutting edges.

• Suitable for general drilling applications.

4. Double-Sided Drilling Inserts

• Two cutting edges per insert for extended tool life.

• Reduces tooling cost per hole.

5. Special Coated Drilling Inserts

• PVD/CVD coatings for improved heat and wear resistance.

• Suitable for high-performance applications.

Top Brands for Drilling Inserts

We stock premium drilling inserts from leading manufacturers:

• Kennametal Drilling Inserts – Reliable for heavy-duty machining.

• Widia Drilling Inserts – Cost-effective with excellent performance.

• Korloy Drilling Inserts – Precision inserts for CNC drilling.

• Taegutec Drilling Inserts – Advanced chip control and long tool life.

• Sandvik & Seco Drilling Inserts – High-performance inserts for difficult materials.

Why Buy Drilling Inserts from CNC Tools Depot?

• Largest Marketplace – Access to thousands of insert types & grades.

• Global Brands in One Place – Kennametal, Korloy, Widia, Taegutec & more.

• Competitive Prices – Direct-to-customer pricing.

• Fast Delivery – Worldwide shipping for all drilling inserts.

• Expert Support – Technical guidance for insert selection.