Kennametal 4149303 Solid Carbide Jobber Drill 11.10mm

Product Description

The KENNAMETAL 4149303 is a solid carbide jobber-length drill bit ground to an 11.10 mm (0.4370 inch) diameter with a 140-degree point angle. It carries a multilayer TiAlN coating for heat and wear resistance in demanding cutting applications. The two-flute, right-hand spiral design evacuates chips efficiently while maintaining hole quality. 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 and 45 mm (1.7717 inches) in length. This drill conforms to DIN 6537K and includes through-coolant capability, making it well suited to high-production CNC machining environments.

This jobber drill is designed for cutting steel, stainless steel, cast iron, aluminum, and other non-ferrous materials. Through-coolant delivery keeps cutting temperatures low and extends tool life when drilling deep or interrupted cuts. The 5xD flute-to-diameter ratio supports deeper hole applications without sacrificing chip clearance. It is a high-performance grade tool intended for use in machining centers and CNC drill presses where consistent hole tolerance is required. The tapered web configuration adds strength at the drill tip, reducing the risk of tip breakage under heavy feed rates.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• 140-degree point angle reduces thrust force and improves centering on entry
• Multilayer TiAlN coating extends tool life in high-temperature cutting conditions
• Through-coolant capable for deep-hole and high-feed applications
• DIN 6537K specification ensures dimensional consistency and interchangeability
• Tapered web adds tip strength under aggressive feed rates

Compatibility

Designed as an OEM-style solid carbide jobber drill for CNC machining centers and drill presses accepting a 12 mm straight cylindrical shank, conforming to DIN 6537K geometry standards.

Installation Notes

Installation and tool changes must be performed by a qualified machinist with the machine spindle at a complete stop and all energy sources locked out per OSHA lockout/tagout procedures. Secure the straight shank in a compatible collet chuck or hydraulic toolholder rated for the shank diameter before applying any cutting load. Verify coolant-through passages are clear and coolant pressure is within the machine spindle specification before initiating a drilling cycle. Do not use this drill in hand-held portable drilling equipment.