Made in USA HSS 3 Flute Center Reamer Countersink Set 90° 1/4" - 3/4"

6-Flute Chatterless Countersinks Developed by Severance Tool, the flutes of the 6-flute Chatterless-Countersinks™ are designed with staggered cutting angles to eliminate the harmonics that cause chatter in conventional tools. They feature a positive shearing action, are designed to take heavy cuts and produce exceptionally smooth seats. These six fluted countersinks give long service life because the cutting load is distributed over six cutting edges. Use them in your milling machine, drill press, screw machine, lathes, automatics, special machines, feed units, and hand tools.

Particularly designed for countersinking or light chamfers in workable material. Smooth and burr-free finish.

High Speed Steel TMX 4 Flute Machine Countersink 82° angle. HSS TMX 4 Flute Machine Countersink, 82° angle, 1-1/2" diameter x 1/2" shank diameter X 2-1/4" shank length x 5-3/8" overall length (OAL). Designed with angular relied for machine countersinking, excellent in lathe applications

High Speed Steel Single Flute TMX Countersink with 82° angle. HSS Single Flute TMX Countersink, 82° angle, 1/2" diameter x 1/4" shank diameter X 1" shank length x 2" overall length (OAL). Single flute provides smooth surface finish

High Speed Steel TMX 6 Flute Chatterless Countersink 82° angle. HSS TMX 6 Flute Chatterless Countersink, 82° angle, 5/8" diameter x 1/2" shank diameter. Designed to reduce harmonic cutting action resulting in less chatter Six flutes increases the penetration rate