Sgs 74131 Countersink 1/4 in 82 Degree 3 Flute Solid Carbide

Product Description

The SGS 74131 is a solid carbide countersink designed for precision chamfering and seat preparation in demanding machining applications. With a 1/4 inch head diameter, an 82-degree included angle, and 3 flutes, it delivers clean, consistent countersunk holes in a wide range of materials. The bright, uncoated finish suits general-purpose use where coating buildup is a concern. Machinists and tool-and-die professionals typically install this tool in CNC machining centers or manual drill presses where tight tolerances and surface finish quality are required.

This countersink is suited for production and job-shop environments working with materials including steel, stainless steel, cast iron, titanium, high-temperature alloys, non-ferrous metals, composites, and plastics. The straight cylindrical shank and compact 2-inch overall length make it compatible with standard collets and chucks. It is a single-end tool with no pilot and attaches via the shank, making setup straightforward on most machine configurations.

Key Features

• 1/4 inch head diameter with 82-degree included angle for standard flat-head fastener seating
• 3-flute geometry promotes chip clearance and smooth cutting action
• Solid carbide construction provides rigidity and wear resistance in hard and abrasive materials
• Bright, uncoated finish works across a broad material range without coating interference
• Straight cylindrical shank fits standard collets and drill chucks
• Single-end, no-pilot design for direct use without additional tooling setup

Compatibility

Designed for countersinking operations in steel, stainless steel, cast iron, titanium, high-temperature alloys, non-ferrous metals, composites, and plastics using standard collet or chuck holders accepting a 1/4 inch straight shank.

Installation Notes

This tool is installed by machinists in CNC or manual machine setups. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Secure the shank firmly in a properly sized collet or chuck to prevent runout. Follow the machine manufacturer and tooling guidelines for appropriate speeds and feeds based on the workpiece material.