Precision Twist Drill 4710799 Countersink 1/2 in 80 Deg

Product Description

The PRECISION TWIST DRILL 4710799 is a single flute, straight shank countersink designed for deburring and chamfering operations in metal fabrication, maintenance, and general trade work. With a 1/2 inch diameter tip, an overall length of 1-27/32 inches, and an 80 degree included angle, this tool delivers clean, consistent countersink profiles in a compact form factor. The straight shank allows direct chuck mounting in standard drill presses and hand drills. Machinists, pipefitters, and general tradespeople reach for single flute countersinks when they need a smooth finish without chatter on ferrous and non-ferrous materials.

This countersink is suited for light-to-medium duty shop and field use where a precise 80 degree chamfer is required. Typical applications include countersinking screw heads flush to a surface, chamfering drilled hole edges to remove burrs, and preparing holes for fastener seating on panel assemblies, pipe flanges, and structural components. Its compact overall length makes it practical in tighter work envelopes where a longer tool would be awkward.

Key Features

• Single flute design reduces chatter and delivers a smooth countersink finish
• 80 degree included angle suits common fastener countersink profiles
• 1/2 inch diameter tip for medium hole chamfering work
• Straight shank compatible with standard drill press and hand drill chucks
• Compact overall length of 1-27/32 inches for use in tighter workspaces
• Lightweight at 0.05 pounds for easy handling and reduced fatigue

Compatibility

Designed as a direct-use countersink tool compatible with any standard drill press or hand drill accepting a straight shank bit in the appropriate chuck size range.

Installation Notes

Install the straight shank securely into a properly sized drill chuck before use. Ensure the workpiece is clamped or fixtured to prevent movement during operation. Use appropriate cutting speeds for the material being chamfered and apply cutting fluid on harder metals to extend tool life. Always wear appropriate eye protection when operating rotary cutting tools.

Technical Specifications

• Tip Diameter: 1/2 inch
• Overall Length: 1-27/32 inches
• Included Angle: 80 degrees
• Flute Configuration: Single flute
• Shank Type: Straight
• Weight: 0.05 pounds
• UPC: 698464074639

Standard Information

• Brand: PRECISION TWIST DRILL
• Manufacturer Part Number: 4710799