Accupro 4500414 Carbide Drill Bit 0.5118 in 140 Deg Tialn

Product Description

The ACCUPRO 4500414 is a screw machine length drill bit engineered for high-performance drilling in demanding materials. Built from solid carbide with a TiAlN coating, it delivers superior heat resistance and wear life compared to standard HSS tooling. The 140-degree split point geometry reduces walking and lowers thrust force at entry. At 0.5118 inches (13.00 mm) in diameter with a straight-cylindrical shank of 14.00 mm, this bit is sized for rigid setups in CNC machining centers, drill presses, and screw machine operations. Coolant-through capability supports chip evacuation in deep-hole applications. Right-hand cut with a regular spiral flute and R-thinned web rounds out the geometry.

This drill bit is rated for primary use in stainless steels, making it a go-to for fabricators, machinists, and tool-and-die shops working with 304, 316, and similar grades. The 3xD flute-to-diameter ratio and 60.00 mm flute length suit through-holes and blind holes in plate, bar stock, and structural components. The DIN specification designation confirms it meets standardized European tooling tolerances, which eases integration into shops running metric-standard toolholders. Screw machine length geometry keeps the setup compact and rigid, reducing deflection in short-reach applications.

Key Features

• Solid carbide construction for rigidity and extended tool life in abrasive materials
• TiAlN coating provides high-temperature oxidation resistance and reduced friction
• 140-degree point angle with R-thinned web for reduced thrust and accurate entry
• Coolant-through design improves chip evacuation and heat management in deep holes
• Straight-cylindrical shank for compatibility with standard drill chucks and collets
• DIN-specification geometry for consistent tolerances in metric tooling setups

Compatibility

Designed for use in CNC machining centers, screw machines, and drill presses equipped with straight-shank toolholders or collet chucks accepting a 14.00 mm shank diameter. Primary workpiece material rating is stainless steels per supplier specification.

Installation Notes

Installation and tool changes should be performed with the machine fully powered down and spindle locked. Use a properly sized collet or drill chuck rated for the 14.00 mm shank diameter and ensure the shank is fully seated and secured before operation. Coolant-through setups require the machine spindle to supply coolant at adequate pressure through the tool centerline. Follow applicable shop safety protocols and machine manufacturer guidelines for tool changes and speeds-and-feeds selection.