1" 100° HSS 6-Flute Chatterless Countersink 60° 6-Flute Countersinks The drill bit has a

The drill bit has a round shank that works with a wide range of tool-holding systems

as well as a 1/2" reduced shank that can be used in a wide range of tool-holding systems

QTY 1 STE3 (1/4" - 3/4" x 16ths)

It has a 135° split point tip for fast and accurate drilling and is manufactured to Aerospace Standard 907 for superior quality

1" 100° HSS 6-Flute Chatterless Countersink 60° 6-Flute Countersinks The drill bit has aSpecifications SIZE 1" OVERALL LENGTH 2 3 4" MATERIAL HIGH SPEED STEEL FINISH UNCOATED (BRIGHT) SHANK DIAMETER 1 2" NUMBER OF FLUTES 6 SHANK TYPE ROUND CUTTING ANGLE 100 SUGGESTED PACK QTY 1 6 flute countersinks, also known as chatterless countersinks, are designed to remove more metal compared to countersinks with fewer flutes. They are also more effective on harder materials and provide a more chatter free cut.