Keo 929-000-085 Dovetail Cutter 60 Degree Cobalt

Product Description

The KEO 929-000-085 is a cobalt dovetail cutter designed for milling dovetail slots and angled undercut features in ferrous and non-ferrous materials. Built from M42 cobalt high-speed steel, this cutter delivers a 60-degree included angle with a 3/4 inch cut diameter and a 5/16 inch cutting width. The bright uncoated finish suits general-purpose applications where coating adhesion or regrinding flexibility is a priority. With 8 teeth and right-hand cutting direction, it produces clean, consistent dovetail profiles in milling machine and machining center setups. The 3/8 inch shank with a Weldon flat provides secure toolholder engagement and minimizes slip under cutting loads.

This cutter is used in machine shops, tool rooms, and production environments for cutting dovetail ways, slides, and fixture slots. It is suited for both manual knee mills and CNC vertical machining centers. The compact 5/16 inch cutting width makes it well-suited for narrower dovetail profiles in jig and fixture work. Machinists and tool-and-die makers are the primary installers, typically using it in end mill holders or Weldon-style set-screw toolholders sized for a 3/8 inch shank.

Key Features

• 60-degree included angle for standard dovetail slot geometry
• M42 cobalt construction for improved heat and wear resistance over standard M2 HSS
• Bright uncoated finish allows resharpening and suits a wide range of work materials
• Weldon flat on shank prevents rotational slip in set-screw toolholders
• 8-tooth design balances chip load and surface finish in dovetail milling operations
• Right-hand cutting direction for standard spindle rotation setups

Compatibility

Designed for use in 3/8 inch Weldon-style end mill holders or equivalent set-screw toolholders on manual or CNC milling machines requiring a 60-degree dovetail cutter with a 3/4 inch cut diameter.

Installation Notes

This cutter is installed and operated by machinists using standard milling machine toolholders. Power down and lock out the spindle before changing or inspecting the cutter. Seat the shank fully into the toolholder bore and tighten the set screw against the Weldon flat to the toolholder manufacturer's specification. Inspect the cutter for chips or wear on cutting edges before each use.