Kennametal 4150741 Solid Carbide Jobber Drill 10.20mm

Product Description

The KENNAMETAL 4150741 is a solid carbide jobber-length drill designed for high-performance drilling in demanding production environments. It features a 10.20 mm (0.4016 inch) cutting diameter and a 140-degree point angle engineered for self-centering entry and reduced thrust on hard materials. A multilayer TiAlN coating extends tool life by resisting heat buildup at elevated cutting speeds. The overall length is 118.00 mm (4.6457 inches), with a 71.00 mm (2.7953 inch) flute length and a maximum drilling depth of 56.00 mm (2.2047 inches). The straight cylindrical shank measures 12 mm in diameter. This drill is installed and operated by machinists and tool-and-die professionals on CNC and manual drilling equipment.

This jobber drill is suited for drilling steel, stainless steel, cast iron, aluminum, and non-ferrous materials across general machining, fabrication, and production applications. The regular spiral flute geometry promotes efficient chip evacuation in through-hole and blind-hole operations. The tapered web configuration improves drill rigidity and reduces walking on entry. Conforming to DIN 6537K, this drill fits into standard tooling setups used in job shops, OEM manufacturing, and maintenance machining environments where consistent hole quality and dimensional accuracy are required.

Key Features

• 10.20 mm cutting diameter with diameter tolerance of -0.0007 to 0.0000 inches for precise hole sizing
• 140-degree point angle reduces thrust and improves self-centering on hard workpiece materials
• Multilayer TiAlN coating resists heat and extends tool life at high cutting speeds
• Solid carbide construction provides rigidity for drilling steel, stainless steel, cast iron, and non-ferrous materials
• Tapered web configuration increases core strength and minimizes drill walking
• Right-hand, regular spiral flute geometry promotes effective chip evacuation
• Conforms to DIN 6537K specification for dimensional consistency with standard toolholders

Compatibility

Designed for use with standard straight-shank drill chucks and toolholders accepting a 12 mm shank diameter. Suitable for drilling steel, stainless steel, cast iron, aluminum, and non-ferrous workpiece materials per the manufacturer specification. No coolant-through capability; intended for external coolant or dry cutting setups.

Installation Notes

Installation and operation should be performed by qualified machinists familiar with carbide tooling practices. Ensure the drilling machine spindle is fully stopped and the workpiece is securely clamped before loading or changing the drill. Carbide is brittle compared to high-speed steel; avoid side loads, interrupted cuts without proper feed adjustment, or dropping the tool. Verify shank seating and runout in the chuck or collet before commencing a cut to prevent premature edge chipping.