Accupro 4500148 Solid Carbide Jobber Drill 4.40 Mm Tialn

Product Description

The ACCUPRO 4500148 is a solid carbide jobber-length drill bit designed for high-performance drilling in demanding materials. It measures 4.40 mm (0.1732 inches) in diameter with an overall length of 74.00 mm (2.9134 inches) and a flute length of 36.00 mm (1.4173 inches). The 140-degree split point geometry reduces walking and thrust requirements, making it well suited for harder alloys. A TiAlN (Titanium Aluminum Nitride) coating provides heat resistance and extends tool life in high-speed applications. This drill is installed and operated by machinists, tool-and-die makers, and maintenance technicians working in metal fabrication and production environments.

This drill bit is engineered primarily for stainless steel and other hard ferrous and non-ferrous alloys where heat buildup and tool wear are the primary concerns. The 5xD flute-to-diameter ratio, right-hand spiral flute configuration, and R-thinned web reduce cutting resistance and improve chip evacuation. The straight cylindrical shank with a 6 mm diameter fits standard drill chucks and collet systems. Coolant-through capability makes it compatible with CNC machining centers and drill presses equipped with through-spindle coolant delivery, supporting deeper hole applications with reduced recutting of chips.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• TiAlN coating improves thermal resistance and extends cutting tool life
• 140-degree proprietary point angle reduces drill walk and axial thrust
• R-thinned web lowers cutting force and improves point strength
• Coolant-through design supports deep-hole drilling with through-spindle coolant systems
• Right-hand, regular spiral flute promotes consistent chip evacuation
• Conforms to DIN specification standards

Compatibility

Designed as a high-performance replacement jobber drill for applications in stainless steel and similar hard workpiece materials; fits standard drill chucks and collet holders accepting a 6 mm straight cylindrical shank.

Installation Notes

Installation and operation should be performed by qualified machinists or maintenance technicians familiar with rotary cutting tools. Ensure the spindle is fully stopped and the machine is de-energized or locked out before mounting or removing the drill bit. Confirm the chuck or collet is properly sized for the 6 mm shank and that runout is within acceptable limits before operation. When using coolant-through capability, verify the machine spindle and toolholder are rated and configured for through-coolant delivery before applying cutting fluid pressure.