Chicago-latrobe 56702 Combo Drill Countersink Size 2 Hss

Product Description

The CHICAGO-LATROBE 56702 is a combo drill countersink designed to drill and countersink in a single operation. It features a 3/16-inch body diameter, a 5/64-inch drill point diameter, and a 60-degree included angle. Manufactured from high speed steel with a bright polished finish, it delivers consistent performance on alloy steel, carbon steel, and tool steel workpieces. The plain cutting edge and right-hand cut geometry make it a straightforward choice for machinists and fabricators running production countersinking operations where efficiency and hole quality matter.

This combo drill countersink is suited for use in machine shops, fabrication environments, and maintenance operations where countersunk fastener seats are required in steel materials. It is sized at trade size 2 with an overall length of 1-7/8 inches, fitting standard toolholders used for light-to-medium countersinking work. The double end type extends tool life by providing two usable cutting ends. Typical applications include preparing holes for flat-head screws and bolts in alloy steel, carbon steel, and tool steel components.

Key Features

• Combo drill and countersink in one tool eliminates a separate operation
• High speed steel construction handles alloy steel, carbon steel, and tool steel
• Bright polished finish reduces friction and aids chip clearance
• 60-degree included angle for standard countersunk fastener geometry
• Double end design provides two cutting ends to extend usable tool life
• Right-hand cut with plain cutting edge style for straightforward machine operation

Compatibility

Designed as an OEM-style replacement combo drill countersink for standard toolholding setups used in countersinking alloy steel, carbon steel, and tool steel workpieces.

Installation Notes

Installation and use of this tool is performed by machinists and metalworking professionals using drill presses, lathes, or CNC machines. Ensure the spindle and workpiece are fully secured before operation, and set appropriate spindle speeds for the workpiece material and tool diameter. Inspect both cutting ends before use and replace the tool if chipping or excessive wear is observed. Follow applicable shop safety standards and equipment manufacturer guidelines for toolholder setup and runout tolerance.