Kennametal 4149131 Jobber Drill Wire 30 Solid Carbide 140 Deg

Product Description

The KENNAMETAL 4149131 is a solid carbide jobber-length drill bit in wire gauge size 30, with a decimal diameter of 0.1285 inches. It features a 140-degree standard point angle and a multilayer TiAlN coating designed to extend tool life in demanding cutting applications. The right-hand, regular spiral flute geometry provides efficient chip evacuation, and the straight cylindrical shank accepts standard drill chucks without modification. With an overall length of 2.5984 inches and a flute length of 1.1024 inches, this bit is proportioned for the precision hole depths typical of wire-gauge-size drilling. Coolant-through capability supports high-speed production drilling in ferrous and non-ferrous materials. This tool is used by machinists and CNC operators in metalworking and manufacturing environments.

This jobber drill is suited for drilling steel, stainless steel, cast iron, aluminum, and other non-ferrous materials. It conforms to DIN 6537K geometry, making it a recognized standard-spec tool in production shops and job shops alike. The 5xD flute-to-diameter ratio and tapered web configuration keep the bit stable at depth and reduce walking on entry. It is appropriate for both manual drill press work and CNC machining center applications where consistent hole tolerance is required. The diameter tolerance of -0.0005 to 0.0000 inches ensures close-fit hole sizing without a secondary reaming operation in many applications.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard and abrasive materials
• Multilayer TiAlN coating provides thermal protection and extended cutting life
• 140-degree point angle reduces thrust force and improves self-centering on entry
• Coolant-through design supports high-speed and deep-hole drilling cycles
• DIN 6537K specification ensures dimensional consistency with standard toolholding systems
• Diameter tolerance of -0.0005 to 0.0000 inches delivers close-fit holes in a single operation

Compatibility

Designed for use in standard straight-shank drill chucks and collet systems accepting a 0.6250-inch shank diameter. Compatible with steel, stainless steel, cast iron, aluminum, and non-ferrous workpiece materials as specified by the manufacturer.

Installation Notes

This drill bit is installed by machinists and CNC operators. Secure the straight shank firmly in a drill chuck or collet before operation and verify runout before beginning a production cycle. Always engage coolant flow before the drill contacts the workpiece when using the coolant-through feature. Inspect the cutting edges for chipping or wear before each use, as solid carbide tooling is brittle and can fracture if run in a worn condition or with excessive feed pressure.