Value Collection SC2182148 Countersink 1-3/4 in 82 Deg 6 Flute

Product Description

The VALUE COLLECTION SC2182148 is a single-end cobalt steel countersink designed for creating precise conical recesses in metal and other hard materials. With a 1-3/4 inch head diameter, an 82-degree included angle, and 6 flutes, this tool delivers smooth, accurate countersinking in demanding shop and field applications. The straight-cylindrical shank measures 1 inch in diameter, making it compatible with standard drill press chucks and milling machine spindles. The bright, uncoated finish indicates no additional surface treatment, keeping the cobalt steel substrate exposed for maximum hardness and heat resistance. Licensed machinists, tool-and-die makers, and metalworking professionals are the typical end users for this type of countersink.

This countersink is suited for countersinking fastener seats in steel, stainless steel, cast iron, and other ferrous materials where high-speed steel tools may wear prematurely. The 82-degree included angle matches the standard flat-head machine screw geometry common in aerospace, structural, and general machining applications. It is configured for right-hand cutting and does not include a pilot, giving the operator full control over positioning. Typical use environments include machine shops, fabrication facilities, and maintenance operations requiring consistent, clean countersink geometry.

Key Features

• 1-3/4 inch head diameter for large-diameter countersink applications
• 82-degree included angle matches standard flat-head fastener geometry
• 6 flutes for smooth chip evacuation and improved surface finish
• Cobalt steel construction provides superior heat and wear resistance over standard HSS
• 1-inch straight-cylindrical shank fits standard chucks and collets
• Right-hand cut, single-end, no pilot — suitable for operator-guided positioning
• Bright, uncoated finish preserves cobalt substrate hardness

Compatibility

Designed as an OEM-style replacement or direct-use countersink for metalworking setups requiring an 82-degree, 6-flute tool with a 1-inch straight shank and 1-3/4 inch head diameter.

Installation Notes

Install this countersink in a drill press, mill, or hand drill with a chuck capable of accepting a 1-inch straight-cylindrical shank, and verify the chuck is fully tightened before operation. Always secure the workpiece firmly before cutting, and use an appropriate cutting fluid on ferrous materials to extend tool life and improve finish quality. Wear appropriate PPE including eye protection when operating rotary cutting tools. Inspect the flute edges for damage or dullness before each use.