5/16"-120 HSS 6 Flute Chatterless Countersink Quantity:1 Tekton deep impact sockets have

Tekton deep impact sockets have both a high-visibility laser marking and a permanent stamped marking that won't wear off

They're also marked with a high-visibility laser marking

Because of this

Part Number DEWCHAT1/2-60

Part Number MMO1/4-2FSE-BN

5/16"-120 HSS 6 Flute Chatterless Countersink Quantity:1 Tekton deep impact sockets haveProduct Description 6 Flute chatterless countersinks are designed to provide more metal removes than the 1,2,3 and 4 flute countersinks. They are also more effective on harder materials. Brand Drill America Part Number DEWCHAT5 16 120 Size 5 16" 120 Material High Speed Steel Finish Uncoated (Bright) Body Diameter 5 16" Shank Type Round Countersink Angle 120 Shank Size 1 4" Length 2" Number of Flutes 6