Kennametal 1939528 Solid Carbide Jobber Drill 9.70 Mm Tialn

Product Description

The KENNAMETAL 1939528 is a solid carbide jobber-length drill bit engineered for high-performance drilling in demanding production environments. At 9.70 mm in diameter with a 140-degree point angle and TiAlN coating, this drill is built for extended tool life when cutting through steel, stainless steel, cast iron, and aluminum and non-ferrous materials. The web-thinned, standard point reduces entry thrust and improves centering at the start of cut. With an overall length of 4.06 inches and a flute length of 2.40 inches, it fits standard toolholding with a 10 mm straight cylindrical shank. Right-hand spiral flute geometry promotes efficient chip evacuation. Coolant-through capability supports high-speed machining cycles where heat management is critical.

This drill is suited for CNC machining centers and drill presses in industrial and job-shop settings where consistent hole tolerance and tool longevity matter. The KC7315 material grade and DIN 6537L specification place it in the high-performance tier for production drilling of ferrous and non-ferrous workpieces. Maximum drilling depth reaches 49.00 mm, making it appropriate for medium-depth through-hole and blind-hole applications across a wide range of part programs. Machinists and toolroom technicians working to tight tolerances will benefit from the diameter tolerance specification of plus 0.006 to plus 0.021 mm.

Key Features

• Solid carbide construction in KC7315 grade for hardness and wear resistance in steel and stainless steel
• TiAlN coating extends surface hardness and oxidation resistance at elevated cutting temperatures
• 140-degree point angle with web-thinned geometry reduces thrust and improves hole entry accuracy
• Coolant-through design supports high-speed drilling and chip flushing in deep-hole cycles
• Right-hand regular spiral flute promotes positive chip evacuation across multiple workpiece materials
• Conforms to DIN 6537L specification for consistent dimensional standards across tooling programs

Compatibility

The 1939528 uses a 10 mm straight cylindrical shank and is compatible with standard ER collet chucks, hydraulic toolholders, and drill chucks designed for that shank diameter. It is rated for primary workpiece materials including steel, stainless steel, cast iron, and aluminum and non-ferrous materials per the manufacturer specification.

Installation Notes

Installation and tool changes should be performed by qualified machinists with the machine spindle fully stopped and locked out per applicable machine safety procedures. Ensure the shank seating depth and runout are verified before initiating a cutting cycle, as excessive runout will accelerate wear on a carbide tool. Coolant supply pressure and flow should be confirmed when using the through-coolant feature, since inadequate coolant delivery in high-speed applications can shorten tool life significantly. Do not use this drill in manual hand-drill applications; solid carbide tooling is designed for rigid machine spindle use only.