Precision Twist Drill 5010684 Hss Chucking Reamer 1/2 in

Product Description

The PRECISION TWIST DRILL 5010684 is a high-speed steel (HSS) chucking reamer with a straight-flute design, built for precision hole finishing in metal fabrication and mechanical assembly work. With a 1/2-inch tip diameter and an overall length of 8 inches, this reamer is sized for applications where dimensional accuracy and smooth bore finish are critical. HSS construction provides the hardness needed to cut through steel, cast iron, aluminum, and similar materials without rapid edge wear. Machinists, pipefitters, and millwrights reach for this tool when a drilled hole needs to be brought to exact tolerance.

This chucking reamer is suited for use in drill presses, lathes, and CNC machines where the reamer is held in a chuck or collet. The straight-flute geometry works well in through-holes and blind holes where chip clearance is manageable. Typical applications include enlarging and finishing holes in mechanical components, valve bodies, pump housings, and structural assemblies where close-tolerance fitment is required. It is sold individually and intended for professional shop and field use.

Key Features

• High-speed steel construction for durability across a range of ferrous and non-ferrous materials
• Straight-flute design suitable for through-hole and blind-hole reaming
• 1/2-inch diameter tip for precise half-inch bore finishing
• 8-inch overall length provides reach for deeper setups or extended-access applications
• Chucking-style shank compatible with standard drill press chucks, lathe tailstocks, and collet holders

Compatibility

Designed for use in any standard chuck or collet rated for 1/2-inch shank tooling, including drill presses, engine lathes, and CNC machining centers.

Installation Notes

Chucking reamers should be installed and operated by a qualified machinist or tradesperson familiar with cutting-tool safety. Always power down and lock out the machine before inserting or removing the reamer from the chuck. Use appropriate cutting fluid for the workpiece material to extend tool life and improve surface finish. Never use a reamer to remove more material than the recommended stock-removal allowance for the diameter — pre-drill or bore the hole close to final size before reaming.

Technical Specifications

• Material: High-Speed Steel (HSS)
• Flute Type: Straight Flute
• Tip Diameter: 0.5 inches
• Overall Length: 8 inches
• Weight: 0.3 pounds
• Sold As: Each

Standard Information

• Brand: PRECISION TWIST DRILL
• Manufacturer Part Number: 5010684