Precision Twist Drill 4710797 Countersink 1/4 Inch 80 Degree

Product Description

The PRECISION TWIST DRILL 4710797 is a single flute, straight shank countersink designed for creating clean, accurately angled entry points in metal and other materials. Built with an 80 degree included angle and a 1/4 inch tip diameter, this countersink suits a range of deburring, chamfering, and seat-preparation tasks. The straight shank design allows it to seat directly in standard drill chucks without an adapter. With an overall length of 1-7/16 inches, it fits compact tooling setups where clearance is limited. Machinists, pipefitters, and general fabricators reach for this style of countersink when a single clean pass is all the job requires.

This countersink is suited for use in machine shops, maintenance facilities, and fabrication environments where controlled chamfering or countersinking is part of regular workflow. The single flute geometry reduces chatter on softer metals and non-ferrous materials, making it a practical choice for precision seat work and fastener preparation in both production and repair settings.

Key Features

• Single flute design minimizes chatter and produces a smooth finish
• 80 degree included angle for standard chamfering and countersinking applications
• 1/4 inch tip diameter for controlled material removal
• Straight shank fits directly into standard drill chucks
• Compact overall length of 1-7/16 inches suits tight clearance setups

Compatibility

Designed as an OEM-style countersink for use in standard drill chucks accepting straight shank tooling in the appropriate size range.

Installation Notes

This countersink is typically installed and operated by machinists or maintenance technicians using a drill press, mill, or hand drill. Secure the straight shank firmly in the chuck before operation and verify the spindle speed is appropriate for the workpiece material. Ensure the workpiece is clamped securely before beginning the countersinking operation to prevent movement and maintain angle accuracy.

Technical Specifications

• Tip Diameter: 1/4 inch
• Overall Length: 1-7/16 inches
• Included Angle: 80 degrees
• Flute Configuration: Single flute
• Shank Type: Straight shank
• Weight: 0.01 pounds

Standard Information

• Brand: PRECISION TWIST DRILL
• Manufacturer Part Number: 4710797