Sandvik Coromant 7549914 Indexable Drill Insert DS20L5

Product Description

The SANDVIK COROMANT 7549914 is a solid carbide indexable drill insert designed for precision drilling applications in metal-cutting operations. Featuring an irregular DS20 insert style with an L5 chipbreaker, this insert carries a TiCN and Al2O3 PVD coating applied via physical vapor deposition for improved wear resistance and thermal stability. The inscribed circle measures 7.34 mm with a 0.35 mm corner radius, making it suited for demanding hole-making work where edge integrity and consistent chip control are critical. Machinist and toolroom professionals use this insert in indexable drill bodies that accept the DS20 style seat geometry.

This insert is intended for use in indexable drilling systems operating in a right-hand cutting direction. Typical applications include production drilling in ferrous and non-ferrous materials across CNC machining centers and turning centers. The 1144 manufacturer grade designation indicates the specific substrate and coating combination optimized for the DS20 insert series. Insert size is 0205. The L5 chipbreaker geometry supports chip evacuation in through-hole and blind-hole drilling scenarios where chip management directly affects hole quality and tool life.

Key Features

• Solid carbide substrate with TiCN and Al2O3 PVD coating for wear and thermal resistance
• DS20 insert style with L5 chipbreaker for active chip control during drilling
• 7.34 mm inscribed circle with 0.35 mm corner radius for precise cutting geometry
• Right-hand cutting direction, irregular shape, insert size 0205
• Manufacturer grade 1144 for consistent performance in the DS20 tooling system

Compatibility

Designed as an OEM-style replacement insert for indexable drill bodies that accept the DS20 insert style seat geometry with a right-hand cutting configuration.

Installation Notes

Insert installation and replacement should be performed by a qualified machinist or toolroom technician. Ensure the spindle is fully stopped and the machine is locked out before changing inserts. Use the appropriate torx or hex key to the tool manufacturer's specified seating procedure to ensure the insert is fully seated in the pocket. Inspect the insert seat for debris or damage before installing a new insert, as an improperly seated insert can cause premature failure or dimensional inaccuracy.