Kennametal 4150648 Jobber Drill 3.90 Mm Solid Carbide

Product Description

The KENNAMETAL 4150648 is a solid carbide jobber-length drill bit designed for high-performance drilling in metalworking applications. It features a 3.90 mm diameter with a 140-degree point angle and a multilayer TiAlN coating that extends tool life in demanding cut conditions. The overall length is 74.00 mm (2.9134 inches), with a straight cylindrical shank and a regular right-hand spiral flute. This drill conforms to DIN 6537K and is intended for use by machinists, tool-and-die professionals, and maintenance technicians working in production or repair environments.

This drill is rated for use in steel, stainless steel, cast iron, aluminum, and other non-ferrous materials. The 5xD flute-to-diameter ratio and tapered web configuration make it well suited for short-to-medium depth holes in both manual and CNC machine tool setups. The 36.00 mm flute length (1.4173 inches) provides adequate chip evacuation for the supported maximum drilling depth of 29.00 mm (1.1417 inches). It is a single-piece, solid carbide construction with no brazed joints.

Key Features

• Solid carbide construction rated for high-performance metalworking grades
• Multilayer TiAlN coating for heat and wear resistance in ferrous and non-ferrous materials
• 140-degree point angle reduces thrust and improves self-centering on hard materials
• DIN 6537K specification ensures dimensional consistency and interchangeability
• Tapered web and regular spiral flute geometry for reliable chip evacuation
• Straight cylindrical shank compatible with standard drill chucks and collet holders

Compatibility

Designed as a DIN 6537K-compliant jobber drill for use in CNC machining centers, drill presses, and hand-held power tools with standard straight-shank collet or chuck systems. Suitable for primary workpiece materials including steel, stainless steel, cast iron, aluminum, and non-ferrous alloys.

Installation Notes

Installation is performed by qualified machinists or maintenance technicians. Secure the shank fully in the chuck or collet to the specified grip depth before applying power. Confirm spindle speed and feed rate are appropriate for the workpiece material and drill diameter before beginning the cut. Do not exceed the rated maximum drilling depth of 29.00 mm without retracting to clear chips.