Value Collection SC2160116 Countersink 1-1/4 in 60 Deg 6 Flute

Product Description

The VALUE COLLECTION SC2160116 is a 6-flute cobalt steel countersink designed for enlarging and finishing countersink holes to a precise 60-degree included angle. With a 1-1/4 inch head diameter and a 3/4 inch straight-cylindrical shank, this tool fits standard drill press chucks and milling machine spindles. The cobalt steel construction provides heat resistance and edge retention when working through harder workpiece materials. The bright, uncoated finish leaves the cutting edges exposed for easy inspection. Right-hand cutting geometry suits conventional CNC and manual machine setups. This single-end tool is installed by machinists, tool and die makers, and maintenance technicians performing precision countersinking operations.

This countersink is suited for production and maintenance shops requiring consistent countersink geometry in ferrous and non-ferrous materials. The 60-degree included angle is a common specification for fastener seating in metalworking applications. The straight-cylindrical shank allows direct mounting in collet chucks, drill chucks, or end mill holders without adapters. No pilot is included, so the operator controls centering through the machine spindle or a dedicated holding fixture.

Key Features

• 1-1/4 inch head diameter for wide countersink coverage
• 60-degree included angle matches standard metric and fractional flathead fastener geometry
• 6-flute design distributes cutting load and reduces chatter
• Cobalt steel construction offers increased heat and wear resistance over standard HSS
• 3/4 inch straight-cylindrical shank for broad chuck and collet compatibility
• Right-hand cut, single-end configuration with no pilot included

Compatibility

Designed for use in standard drill press, milling machine, and CNC machining center spindles accepting a 3/4 inch straight-cylindrical shank. Suitable for countersinking applications in metalworking environments where a 60-degree included angle is specified.

Installation Notes

Installation and operation should be performed by qualified machinists or maintenance technicians familiar with rotating cutting tools. Secure the shank firmly in a properly sized chuck or collet before operation, and verify the spindle is fully stopped and locked out before making any tool changes. Use appropriate cutting fluid or coolant for the workpiece material to extend tool life and maintain dimensional accuracy. Follow shop safety protocols and applicable OSHA machine guarding standards when operating milling or drilling equipment.