Kennametal 4054522 Jobber Drill Bit 0.2280 in Solid Carbide

Product Description

The KENNAMETAL 4054522 is a solid carbide jobber length drill bit in the Kenna Universal series, designed for high-performance drilling in demanding industrial and trade applications. It measures 0.2280 inches (Wire Size 1) in diameter with an overall length of 3.2280 inches and a 140-degree split-point tip geometry. The multi-layer TiN/TiAlN coating reduces friction and extends tool life when cutting through hard and abrasive workpiece materials. With two right-hand regular spiral flutes and a straight shank, this bit fits standard drill chucks and CNC machining centers. It is suited for machinists, tool-and-die techs, and maintenance professionals who need consistent hole quality in ferrous and non-ferrous materials.

The 4054522 is rated for drilling into steel, stainless steel, cast iron, aluminum and non-ferrous metals, high-temperature alloys, and hardened materials. The coolant-through design supports internal coolant delivery for deep-hole drilling cycles, keeping the cutting zone cool and evacuating chips efficiently. A 7xD flute-to-diameter ratio provides adequate chip clearance for the bit's diameter class. This bit is a standard production and repair machining tool used in job shops, maintenance facilities, and manufacturing environments where consistent dimensional accuracy is required.

Key Features

• Solid submicron carbide construction for rigidity and wear resistance in hard materials
• Multi-layer TiN/TiAlN coating for extended tool life and reduced built-up edge
• 140-degree point angle for self-centering starts and reduced thrust force
• Coolant-through capability for deep-hole drilling and improved chip evacuation
• Right-hand cut with regular spiral flutes and tapered web configuration
• Conforms to DIN 6535 and DIN 69090-3 specifications

Compatibility

Designed as a standard straight-shank jobber length drill bit compatible with conventional drill chucks and CNC tool holders accepting a 0.0781-inch shank diameter. Suitable for use in drill presses, machining centers, and hand-held power tools with appropriate chuck capacity. No specific OEM model compatibility was stated in the product data.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or maintenance technicians familiar with cutting tool setup and machine tool operation. Ensure the machine spindle is fully stopped and the tool holder is properly secured before inserting or removing the bit. Verify that the chuck or collet bore matches the 0.0781-inch shank diameter to prevent runout. When using the coolant-through feature, confirm that the machine tool's internal coolant system pressure is appropriate for the application before beginning the drilling cycle.