Widia 3850996 Replaceable Drill Tip 0.5781 in 140 Deg WU25PD

Product Description

The WIDIA 3850996 is a replaceable drill tip designed for use with TDM1-series modular drilling systems. It features a 0.5781-inch cutting diameter, a 140-degree standard point angle, and is manufactured from submicron solid carbide. The TiAlN/TiN PVD coating extends tool life when cutting ferrous materials by reducing heat buildup at the cutting edge. Coolant-through design channels fluid directly to the cutting zone, supporting chip evacuation and thermal management during through-hole drilling operations. This tip is installed by machinists and toolroom technicians working in production or job-shop environments.

This replaceable tip is suited for drilling operations in steel and cast iron workpieces, covering ISO material groups P and K. The helical, regular-spiral flute geometry with a 2-flute, 2-margin configuration supports stable chip flow. The UP insert geometry is optimized for through-coolant drilling, including applications involving inclined exit conditions. It fits W23 insert seat size toolholders within the TDM1 modular drill platform. Typical applications include production drilling in CNC machining centers where consistent hole quality and fast tip changes are priorities.

Key Features

• 0.5781-inch cutting diameter with 140-degree standard point angle for precise entry geometry
• Submicron solid carbide substrate in manufacturer grade WU25PD for wear resistance
• TiAlN/TiN PVD dual coating reduces friction and extends tool life in steel and cast iron
• Coolant-through design directs fluid to the cutting edge for chip evacuation and heat control
• 2-flute, 2-margin helical geometry supports stable cutting in through-hole applications
• Designed for inclined exit drilling scenarios within the TDM1 modular system

Compatibility

Designed for use with TDM1-series modular drill bodies accepting W23 insert seat size. Compatible with steel (ISO P) and cast iron (ISO K) workpiece materials. ISO number TDM05781UP identifies this tip within the WIDIA modular drill system.

Installation Notes

Installation is performed by qualified machinists or toolroom personnel. Power down and lock out the machine spindle before seating or removing the replaceable tip. Use the appropriate clamp torque tool recommended for TDM1 insert holding to avoid seat damage. Verify coolant passages are clear and unobstructed before resuming cutting operations.