OSG Carbide Drill 3XD - WD1 Coated Whistle Notch Shank With Oil Hole - Through Coolant - 7.94 (5/16) Wide Range Digital Calipers 54 mm diameter and long

54 mm diameter and long flute length reaching 8–12 times the diameter

Variable-Index Geometry: Distributes cutting edges to reduce cutting forces and improve chip evacuation

repeatable holes across batches

helping extend coolant life and protect tooling

ALTiN+HH coated carbide for hardened materials: Combines wear-resistant coating with a tough substrate to enable dry

OSG Carbide Drill 3XD - WD1 Coated Whistle Notch Shank With Oil Hole - Through Coolant - 7.94 (5/16) Wide Range Digital Calipers 54 mm diameter and longThe OSG Carbide Drill 3XD is a through coolant carbide drill designed for precision drilling in professional settings. With a 5 16" (7. 94 mm) diameter, its built for durability and reliable performance across a range of metals, making it a solid choice for engineers, machinists, and maintenance professionals who need consistent hole quality and long tool life. WD1 coating for extended tool life: The WD1 coating reduces wear and heat buildup, helping