1"-90 HSS 6 Flute Chatterless Countersink BoltsandNuts.com Part Number: Assortment Kit #3152012

Part Number: Assortment Kit #3152012 Pieces - Coarse Thread

Part Number: EZ-EK41315

even on tough materials

Part Number: M25X50DPPOAPL

waffle-pattern serrations that help grip each end of the ring and hold it securely while spreading it open

1"-90 HSS 6 Flute Chatterless Countersink BoltsandNuts.com Part Number: Assortment Kit #3152012Product 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 DEWCHAT1 90 Size 1" 90 Material High Speed Steel Finish Uncoated (Bright) Body Diameter 1" Shank Type Round Countersink Angle 90 Shank Size 1 2" Length 2 3 4" Number of Flutes 6