Value Collection SC1090132 Countersink 90 Deg 1 Flute Hss

Product Description

The VALUE COLLECTION SC1090132 is a single-flute countersink designed for deburring and chamfering operations in metal fabrication and machining applications. Built from high-speed steel (HSS) with a bright, uncoated finish, this tool produces a clean 90-degree included angle (45-degree centerline angle) seat suitable for flathead fastener installation and edge preparation. The straight cylindrical shank measures 0.75 inches in diameter, and the head diameter reaches 1.5 inches. It is intended for use in drill presses, milling machines, or hand-held power tools where consistent countersink geometry is required.

This countersink is suited for general metalworking, fabrication shops, and maintenance environments where single-end countersinking of standard fastener holes is performed. The right-hand cutting direction is compatible with conventional clockwise-rotating spindles. The single-flute design reduces chatter and is particularly effective in softer metals and plastics. No pilot is included, making it a standalone countersinking tool appropriate for machinists and tool-and-die professionals working to standard flathead screw specifications.

Key Features

• 90-degree included angle for standard flathead fastener seating
• Single-flute geometry reduces vibration and chatter during operation
• High-speed steel construction provides durability across a range of workpiece materials
• Bright uncoated finish allows easy visual inspection of cutting edge condition
• 0.75-inch straight cylindrical shank fits standard drill chuck and tool holders
• Right-hand cutting direction compatible with conventional spindle rotation

Compatibility

Designed as a general-purpose countersink for use with standard drill presses, CNC mills, and handheld power tools accepting a 0.75-inch straight cylindrical shank.

Installation Notes

Installation and operation should be performed by a qualified machinist or fabricator familiar with rotating cutting tools. Secure the shank firmly in the chuck or collet before operation and verify spindle speed is appropriate for the workpiece material and tool diameter. Always power down and lock out the machine before changing or inspecting the tool. Do not exceed the tool's rated RPM range or apply excessive feed pressure, as this can damage the cutting edge or workpiece.