Value Collection 28601 Countersink 1 Flute Hss 1/4 in

Product Description

The VALUE COLLECTION 28601 is a single-flute countersink designed for creating conical seat recesses in metal, wood, and plastic workpieces. It accepts and produces an 82-degree included angle, matching the standard geometry required for flat-head fastener seating. Both the head diameter and the straight shank diameter measure 0.25 inches, making it compatible with standard drill chucks and collet holders. The cutting body is manufactured from high speed steel, which maintains edge hardness through the heat generated during normal drilling operations. Machinists, tool and die technicians, and general fabricators use this type of tool for deburring drilled holes and preparing fastener seats on light to medium-duty workpieces.

This countersink is suited for bench drill press work, hand drill use, and CNC or manual milling setups where a small-diameter conical recess is needed. The 82-degree angle matches the head geometry of most standard flat-head machine screws and wood screws used in North American fastener specifications. Its compact 0.25-inch shank fits directly into a standard drill chuck without an adapter, making it practical for quick single-operation setups in shop or field environments.

Key Features

• 82-degree included angle matches standard flat-head fastener seat geometry
• 0.25-inch head diameter for small-diameter countersink applications
• 0.25-inch straight shank fits standard drill chucks without adapters
• Single-flute design reduces chatter on thin or soft workpiece materials
• High speed steel construction retains cutting edge through typical drilling heat

Compatibility

Designed as a standard single-flute countersink for use with drill presses, hand drills, and manual or CNC milling machines accepting a 0.25-inch straight shank tool.

Installation Notes

Secure the shank firmly in the drill chuck before operation and verify the workpiece is clamped or fixtured to prevent rotation. Set spindle speed appropriate to the workpiece material and tool diameter following standard machining speed-and-feed references. Inspect the cutting edge before each use and replace the tool if chipping or dulling is observed to avoid oversized or irregular seat geometry.