BIT CSINK 5/8" STL 82DEG

PRODUCT DESCRIPTION:

The Irwin 12412 is a solid, industrial-grade countersink bit designed to produce clean, precise tapered holes for fastener heads in various materials. It has a cutting diameter of 5/8 inch, with an 82-degree tip angle. It is made of high speed steel (HSS), often finished or treated for corrosion resistance and durability. The shank is round, allowing it to be used in standard drill chucks. It is intended for use in machinable materials like wood, plastic, soft metals, and steels.

ADDITIONAL FEATURES:

5 flutes: more flutes help reduce vibration and improve finish on the countersink; smoother cut.

Round 1?4" shank: works with many standard drill chucks.

Relatively compact size: works in handheld drills or smaller drill presses.

Milled & precision ground: gives cleaner finish and tighter tolerances.

INSIGHTS:

Speed & Feed: Use moderate speeds; HSS works better with cooling / lubrication especially when countersinking metals. Overheating will soften the cutting edge.

Depth Control: Because the overall length is about 1-23?32 in, and flute length less than that, make sure you don’t try to countersink too deeply; you’ll get rubbing rather than clean cutting.

Maintenance: Keep the edges sharp. After some use, you may need to re-sharpen or replace. Also keep it clean and avoid overheating to retain temper in the HSS.

Drill Chuck Fit: Make sure your drill or driver chuck can hold a ¼-inch round shank securely. If the chuck is very sloppy or worn, you’ll get vibration & reduced finish quality.

TECHNICAL SPECIFICATIONS:

Brand: IRWIN

Item Model Number: 12412

Product Type: Countersink

Material: High-Speed Steel

Product Dimensions (LxWxH): 5.75" x 1.88" x 0.63"

Shank Size: 1/4"

Shank Style: Round

Diameter: 5/8"

Length of Cut: 9/16"

Countersink Angle: 82°

Number of Flutes: 5

Finish: Black Oxide Finish

Shipping Weight: 1 lb