Micro 100 QDC-2 Combo Drill Countersink 3/16 Inch Solid Carbide

Product Description

The MICRO 100 QDC-2 is a combined drill and countersink tool machined from solid carbide for use in precision metalworking and machining operations. It serves the dual function of center drilling and countersinking in a single pass, reducing tool changes and maintaining positional accuracy on the workpiece. The QDC-2 features a 3/16-inch body diameter, a 5/64-inch drill point diameter, a 118-degree drill point angle, and a 60-degree included angle. The bright, uncoated finish is suited for applications where coating interference with tight tolerances is a concern. At 2 inches overall length, it fits standard toolholders used on lathes, mills, and drill presses.

This tool is used in trade size 2 combined drill and countersink applications across precision machining, fabrication, and metalworking environments. It is designed for right-hand cutting operations and belongs to the Combined Drill and Countersinks series. Typical applications include center drilling prior to turning between centers, countersinking for fastener seating, and chamfering operations on ferrous and non-ferrous materials. Machinists and tool-and-die professionals are the primary installers and operators of this tooling.

Key Features

• Solid carbide construction for rigidity and wear resistance in demanding cutting conditions
• 118-degree drill point angle with 60-degree included angle for accurate center drilling and countersinking
• 3/16-inch body diameter with 5/64-inch drill point diameter for trade size 2 applications
• Bright, uncoated finish maintains dimensional integrity in close-tolerance work
• Right-hand cut, single-end design with plain cutting edge style
• 2-inch overall length fits standard machine tool setups

Compatibility

Designed as an OEM-style combined drill and countersink for use in standard toolholding systems on lathes, mills, and drill presses that accept trade size 2 center drill tooling.

Installation Notes

Installation and operation should be performed by a qualified machinist familiar with rotating cutting tool safety. Secure the tool firmly in a compatible collet or chuck before operation and confirm runout is within acceptable limits for the application. Always power down and bring the spindle to a complete stop before changing or inspecting tooling. Operate within the recommended speeds for solid carbide tooling in the workpiece material being cut.