Magafor 84483119050 Countersink 3/4 in 90 Deg 3 Flute Cobalt Tin

Product Description

The MAGAFOR 84483119050 is a single-end countersink designed for deburring and chamfering drilled holes in metal workpieces. Built from cobalt steel with a titanium nitride (TiN) coating, it handles hard alloys, stainless steel, and abrasive materials that would wear down standard high-speed steel tooling. The 90-degree included angle is the most common specification for standard fastener seating in North American manufacturing and fabrication environments. With a 3/4-inch head diameter, three flutes, and a straight cylindrical 3/8-inch shank, this countersink mounts directly in a drill press chuck or hand drill without an adapter. It is installed and used by machinists, pipefitters, and general fabricators.

This countersink is suited for production and maintenance applications in machine shops, metal fabrication shops, and industrial facilities. The 90-degree included angle matches the seating geometry for most flat-head machine screws and socket head cap screws under ANSI and ISO standards. The cutting diameter range runs from 0.12 inches up to the full 3/4-inch head diameter, making it adaptable to a variety of hole sizes in a single pass. It is a no-pilot design, meaning the operator centers the tool manually or by pre-drilled hole registration.

Key Features

• Cobalt steel construction for extended tool life in hard and abrasive metals
• TiN coating reduces friction and increases surface hardness at the cutting edge
• 90-degree included angle seats standard flat-head fasteners without regrinding
• Three flutes provide smooth chip evacuation and a clean chamfer finish
• Straight cylindrical 3/8-inch shank fits standard drill chucks with no adapter required
• Single-end, no-pilot design for direct use over a pre-drilled hole

Compatibility

Designed as an OEM-style single-end countersink for use in drill presses, hand drills, and milling machines accepting a straight cylindrical 3/8-inch shank.

Installation Notes

Installation is performed by machinists or fabricators using a drill press, hand drill, or milling machine. Secure the workpiece fully before operation to prevent movement during cutting. Run at reduced spindle speeds compared to standard HSS tooling when cutting hardened or stainless alloys to avoid edge chipping. Inspect the cutting edges before each use and replace the tool if chipping or excessive wear is observed.