Kennametal 4150697 Solid Carbide Jobber Drill 6.90mm Tin

Product Description

The KENNAMETAL 4150697 is a solid carbide jobber-length drill bit engineered for high-performance hole-making in demanding materials. Ground to a 140-degree split-point angle, it reduces thrust and promotes self-centering at entry without a center punch. The TiN (titanium nitride) coating extends tool life and reduces friction during chip evacuation. At 6.90 mm (0.2717 inches) in diameter with a 91.00 mm (3.5827 inches) overall length and a 53.00 mm (2.0866 inches) flute length, this bit belongs to the Series B042CPG and is sized for precision-tolerance drilling in production and maintenance environments. Licensed machinists and tool-and-die technicians are the primary users.

This drill is suited for drilling steel, stainless steel, cast iron, aluminum, and other non-ferrous materials in both production machining and fabrication settings. The straight cylindrical shank (8 mm shank diameter) fits standard Jacobs-style and precision collet chucks on CNC machining centers, drill presses, and handheld power tools with appropriate adapters. The 5xD flute-to-diameter ratio provides adequate chip clearance in medium-depth holes without a coolant-through feature. It is well-matched to general metalworking operations where a two-flute jobber geometry is preferred over specialty drills.

Key Features

• Solid carbide substrate for rigidity and wear resistance in hard and abrasive workpiece materials
• TiN coating reduces friction, resists built-up edge, and extends cutting life compared to uncoated carbide
• 140-degree point angle self-centers on entry and reduces axial thrust
• Right-hand, regular spiral two-flute geometry provides efficient chip evacuation
• Straight cylindrical 8 mm shank for broad chuck compatibility
• Series B042CPG high-performance grade rated for steel, stainless steel, cast iron, aluminum, and non-ferrous materials

Compatibility

Designed as a direct-fit replacement or production drill in Series B042CPG tooling programs targeting workpiece materials including steel, stainless steel, cast iron, aluminum, and non-ferrous alloys; no specific machine model compatibility data was provided in the product record.

Installation Notes

Installation should be performed by qualified machinists following standard toolroom safety practices. Always power down and lock out the spindle before changing drill bits. Ensure the shank is fully seated and clamped to the chuck manufacturer's recommended torque before commencing a cut. Coolant-through is not supported by this drill; apply external flood or mist coolant where required by the workpiece material and depth-of-cut.