Accupro 4500201 Solid Carbide Jobber Drill 20mm Tialn

Product Description

The ACCUPRO 4500201 is a solid carbide jobber-length drill bit designed for high-performance metal cutting applications in professional machining and fabrication environments. The bit measures 20 mm in diameter (0.7874 decimal inch) with a 153 mm overall length and a 101 mm flute length. A 140-degree split point geometry reduces walking and thrust load on entry. The TiAlN (titanium aluminum nitride) coating provides thermal resistance and extended tool life at elevated cutting speeds. Coolant-through capability supports through-tool coolant delivery for chip evacuation and heat control in deep-hole drilling operations. Installed by machinists and tool-and-die professionals in CNC machining centers and manual drill presses.

This drill is suited for production drilling in ferrous and non-ferrous metals, alloy steels, stainless steels, and cast iron. The R-thinned web reduces cutting resistance at the chisel edge, which is especially useful in harder workpiece materials. With a 5xD flute-to-diameter ratio and straight cylindrical shank, this bit fits standard ER collet chucks and drill chucks across a wide range of machining equipment. It is dimensioned to DIN specification standards, making it a direct fit in shops that source to metric tooling standards.

Key Features

• Solid carbide construction for rigidity and heat resistance in demanding cutting conditions
• TiAlN coating extends tool life and supports dry or minimum-quantity lubrication cutting
• 140-degree proprietary point reduces entry thrust and material deformation
• R-thinned web lowers chisel-edge cutting resistance for cleaner hole initiation
• Coolant-through design enables through-tool coolant delivery for deep-hole applications
• DIN specification designation ensures dimensional interchangeability with metric tooling standards

Compatibility

Designed for use in CNC machining centers and drill presses accepting a 20 mm straight cylindrical shank. Suitable for workpiece materials in the 0.6500 inch diameter range and above per the stated drill bit size range designation.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the straight shank fully and concentrically in the collet or drill chuck and torque the retention mechanism to the machine manufacturer specification. Verify coolant-through passages are clear and aligned before running coolant-enabled operations.