Titan USA TC79221 #21 Jobber Drill Bit, 118 deg Point, Solid Carbide, AlTiN

The Titan USA TC79221 is a premium AlTiN-coated solid carbide jobber drill bit engineered for high-performance drilling in hardened steels, stainless steel, titanium, and heat-resistant alloys. Solid carbide provides the hardness and rigidity needed for aggressive drilling parameters, while the Aluminum Titanium Nitride (AlTiN) coating adds a critical layer of thermal protection — forming a hard aluminum oxide barrier at elevated cutting temperatures that dramatically extends tool life compared to uncoated or TiN-coated alternatives. The 118-degree point geometry delivers reliable self-centering and clean entry in most drilling applications. The AlTiN coating also reduces friction at the cutting edge, enabling higher spindle speeds and reduced coolant dependence in many setups. Jobber length provides excellent versatility for through-holes, clearance holes, and tap drill applications across aerospace, automotive, and precision manufacturing environments where difficult materials demand a coated carbide solution.

• AlTiN coating forms a thermal barrier that dramatically extends tool life in hardened steels and titanium
• Supports higher cutting speeds and reduced coolant dependence compared to uncoated carbide
• Solid carbide substrate provides superior rigidity and hardness vs. HSS in difficult materials
• 118-degree point delivers reliable self-centering and clean entry across a broad range of applications
• Reduced cutting friction lowers heat transfer into the tool for sustained performance at high speeds
• Ideal for aerospace, automotive, and precision manufacturing where hard materials demand coated carbide