Sowa 2-1/2" Series #4 TiN Coated HSS (M4) Spade Drill Blade – #4 Seat, 132° Point, 5/16" Thickness, General Purpose Cutting

Sowa 2-1/2" Series #4 TiN Coated HSS (M4) Spade Drill Blade – #4 Seat, 132° Point, 5/16" Thickness, General Purpose Cutting

Sowa 2-1/2" Series #4 spade drill blade, TiN coated, built from high‑speed steel (M4) for durability and wear resistance 132° included point angle delivers reliable cutting performance and helps reduce wandering when starting holes Series #4 blade ensures compatibility with a wide range of spade drill bodies and standard holders 5/16" blade thickness gives stability in body fit and rigidity during cutting operations, maintaining hole accuracy Designed for general‑purpose drilling in metals; ideal for replacing solid spade inserts for improved tool life and cost efficiency

The Sowa 2-1/2" Series #4 TiN Coated HSS (M4) Spade Drill Blade delivers durability, sharp performance, and versatility for indexable spade drilling applications. Designed with a 132° included point angle and a Titanium Nitride (TiN) coating, this blade is hardened for wear resistance and heat management. Its standard Series #4 geometry make it compatible with commonly used holders and bodies.

• Diameter: 2-1/2" – sizeable hole diameter suited for large spade drill bodies. (2.5000" decimal)
• Point/Angle: 132° included angle – standard for Series #4 spade drills, helping with penetration and reducing chip packing.
• Material & Grade: High Speed Steel (M4 grade) with TiN coating – enhances wear resistance and extends tool life under heavy or prolonged cutting.
• Seat Size and Series: Series #4 spade drill insert – fits compatible spade drill bodies with standard clamping.
• Thickness: 5/16" – provides stiffness and stability in the cutting edge and supports efficient chip evacuation.

This blade is ideal for machinists and tooling engineers working in metal‑cutting operations where replacing solid blades is impractical. Use in stable machine setups, with proper coolant or lubrication when drilling harder materials. Replacing worn blades with genuine Sowa inserts ensures consistent hole quality and repeatability.