Cleveland C00969 Countersink Set 5 Pc 4 Flute 82 Degree

Product Description

The CLEVELAND C00969 is a 5-piece high-speed steel countersink set designed for creating clean, accurate 82-degree countersunk holes in alloy steel and cast iron. The set covers a head diameter range of 1/4 inch to 3/4 inch, with a 4-flute single-end design that delivers smooth cutting and consistent finish across multiple fastener sizes. Overall lengths range from 1.44 inches to 2.41 inches depending on the cutter size. The straight shank design accommodates a range of drill chucks and collet holders. This set is suited for machinists, maintenance technicians, and fabricators who need reliable countersink performance without switching tool types between fastener sizes.

This countersink set is used in metal fabrication, maintenance and repair operations, and production environments where 82-degree flat-head fastener seating is required. The 4-flute geometry suits right-hand cutting in ferrous materials including alloy steel and cast iron. The included plastic storage case keeps cutters organized and protected between uses. Shank diameters range from 4.76 mm on the smallest piece up to 1/2 inch on the largest, covering standard drill press and CNC or manual lathe setups.

Key Features

• 5-piece set covering 1/4 inch to 3/4 inch head diameters in a single kit
• 82-degree included angle for standard flat-head machine screw countersinking
• 4-flute single-end geometry for smooth cutting and reduced chatter in ferrous materials
• High-speed steel construction rated for alloy steel and cast iron applications
• Bright uncoated finish for easy visual inspection of cutting edge condition
• Plastic storage case included for organized, protected tool storage

Compatibility

Designed for countersinking in alloy steel and cast iron workpieces. Straight shank sizes from 4.76 mm to 1/2 inch are compatible with standard drill press chucks, hand drills, and collet-style toolholders that accept those shank diameters.

Installation Notes

Countersinks should be installed by machinists or qualified technicians familiar with rotating tool safety practices. Secure the shank firmly in the chuck or collet before operation and confirm the workpiece is clamped to prevent rotation. Always power down and de-energize the machine before changing or inspecting cutters. Use appropriate cutting fluid or lubricant when working with harder alloy steels to extend cutter life.