Tungaloy 6706811 Replaceable-tip Drill 0.394-0.409 in Weldon

Product Description

The TUNGALOY 6706811 is a replaceable-tip drill body from the DrillMeister series, designed for precision drilling and holemaking in metalworking applications. It accepts DMP100, DMP101, DMP102, DMP103, and DMP104 insert tips, allowing the cutting edge to be swapped without replacing the full body. The drill accommodates a diameter range of 0.394 to 0.409 inches with a maximum drilling depth of 1.969 inches and a 5xD depth-to-diameter ratio. A through-coolant design channels cutting fluid directly to the cutting zone, extending insert life and improving chip evacuation. Machinists and toolroom technicians install this body in CNC machining centers and drill presses equipped with a 5/8-inch Weldon flat shank interface.

This drill body is suited for production drilling operations in ferrous and non-ferrous materials where repeatable hole quality and fast tip changes are required. The Weldon flat shank provides positive drive and minimizes pullout risk under high feed rates. The through-coolant capability makes it well suited for deeper hole applications and materials that generate significant heat at the cutting edge. It is intended for use in professional machine shop environments, tool and die operations, and automated production lines where insert interchangeability reduces downtime.

Key Features

• Replaceable-tip design accepts DMP100, DMP101, DMP102, DMP103, and DMP104 insert styles
• Diameter range of 0.394 to 0.409 inches covers close-tolerance hole requirements
• Maximum drill depth of 1.969 inches at a 5xD length-to-diameter ratio
• Through-coolant construction delivers fluid directly to the cutting edge
• 5/8-inch Weldon flat shank provides positive rotational drive and resists pullout
• DrillMeister series platform enables rapid tip indexing without full tool replacement

Compatibility

Compatible with DMP100, DMP101, DMP102, DMP103, and DMP104 replaceable drill tip inserts. Designed for use in toolholders and spindles accepting a 5/8-inch Weldon flat shank interface within the TUNGALOY DrillMeister TID L/D=5 toolholder style.

Installation Notes

Installation is performed by machinists or toolroom technicians familiar with indexable tooling systems. Secure the Weldon flat shank in a compatible toolholder with the set screw properly torqued against the flat before operation. Verify the coolant-through circuit is active and unobstructed before beginning the drilling cycle. Always power down and lock out the machine spindle before indexing or replacing the drill tip insert.