Kennametal 4149341 Solid Carbide Jobber Drill 9/16 in

Product Description

The KENNAMETAL 4149341 is a solid carbide jobber-length drill bit designed for high-performance drilling in ferrous and non-ferrous materials. It measures 9/16 inches (0.5625 inches) in diameter with a 140-degree point angle and features a multilayer TiAlN coating for extended tool life and heat resistance at elevated cutting speeds. The overall length is 5.2362 inches (133 millimeters), with a regular spiral flute configuration and a straight cylindrical shank. This bit is suited for production and maintenance drilling operations where carbide hardness and coating durability are required. Licensed HVAC, plumbing, electrical, and mechanical contractors as well as machinists use this style of drill in CNC and manual drilling applications.

The 4149341 is intended for drilling steel, stainless steel, cast iron, aluminum, and non-ferrous materials. The coolant-through design supports through-spindle coolant delivery, making it well-suited for deep-hole drilling setups in machining centers and CNC drill presses. The 5xD flute-to-diameter ratio and tapered web configuration help evacuate chips efficiently when boring into tough alloys. Typical applications include structural fabrication, mechanical assembly, and precision part manufacturing where hole tolerance and surface finish are critical.

Key Features

• Solid carbide construction rated as high-performance grade for drilling hard and abrasive materials
• Multilayer TiAlN coating improves wear resistance and thermal stability at high cutting speeds
• 140-degree point angle reduces thrust force and improves self-centering on entry
• Coolant-through design supports through-spindle coolant for deep-hole drilling
• Tapered web with regular spiral flute promotes efficient chip evacuation
• Conforms to DIN 6537K specification for dimensional consistency

Compatibility

Designed as a DIN 6537K-compliant solid carbide jobber drill suitable for use in CNC machining centers and manual drill presses with straight-shank tool holders or collet chucks sized for a 0.4688-inch shank diameter. Primary workpiece materials include steel, stainless steel, cast iron, aluminum, and other non-ferrous metals.

Installation Notes

This drill bit should be installed by a qualified machinist or tooling technician. Ensure the machine spindle and tool holder are powered down and locked out before changing tooling. Verify collet or chuck bore matches the 0.4688-inch straight shank diameter to prevent runout. When using through-spindle coolant, confirm coolant pressure and flow rate are compatible with the machine setup before starting the cut.