Tungaloy 6706820 Replaceable-tip Drill 0.571-0.587 in Drillmeister

Product Description

The TUNGALOY 6706820 is a replaceable-tip drill body from the DrillMeister series, designed for precision holemaking in metalworking and machining applications. The drill accommodates a diameter range of 0.571 to 0.587 inches and supports a maximum drill depth of 2.874 inches at a 5xD depth-to-diameter ratio. The body features a 5/8-inch Weldon Flat shank and through-coolant capability, allowing cutting fluid to be delivered directly to the cutting zone for improved chip evacuation and tool life. Machinists and CNC operators install this body as part of a modular drill system using compatible replaceable insert tips.

This drill body is suited for drilling and holemaking operations in production machining environments, including CNC machining centers and turning centers equipped with live tooling. The through-coolant design makes it well-suited for deeper hole applications where heat and chip buildup are concerns. The Weldon Flat shank provides a secure, anti-rotation interface in standard tool holders. Compatible insert tips include the DMP140, DMP141, DMP142, DMP143, and DMP144 styles, allowing the operator to select the appropriate tip geometry for the material and application.

Key Features

• Diameter range of 0.571 to 0.587 inches for close-tolerance hole sizing with compatible tips
• 5xD depth-to-diameter ratio with a maximum drill depth of 2.874 inches
• Through-coolant design for effective chip evacuation and thermal management
• 5/8-inch Weldon Flat shank for secure, anti-rotation clamping in standard holders
• Modular DrillMeister design - tip replacement without removing the body from the machine
• Overall length of 6.524 inches with a body length of 4.634 inches and shank length of 1.890 inches

Compatibility

Compatible with DMP140, DMP141, DMP142, DMP143, and DMP144 replaceable insert tip styles in the TUNGALOY DrillMeister system.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Ensure the machine spindle is fully stopped and locked out before inserting or replacing the drill body or tip. Seat the Weldon Flat shank fully in the holder and tighten the set screw to the tool holder manufacturer's specified torque before use. Verify through-coolant passages are clear and that coolant pressure is appropriate for the application before beginning a drilling cycle.