KEO Countersink: 100°, 3 Flute, 1/4 in Body Dia

A KEO 100° countersink with three flutes is used to create a conical recess for flat-head screws or rivets in metalworking. The 100° angle is common in aerospace and sheet-metal applications. KEO’s cobalt construction provides heat resistance for use on stainless steel and hardened materials.

The KEO 917-000-217 is a general-purpose three-flute countersink with a 100° included angle and a 1/4 in body diameter. It is made from cobalt steel for durability in high-temperature machining. The 3-flute design reduces chatter and produces a smooth finish in ferrous and non-ferrous metals.

3G Electric supplies KEO countersinks like the 917-000-217 to customers worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this and other KEO cutting tools.

Select a KEO countersink based on the screw head angle (e.g., 100° for aerospace), material hardness (cobalt for stainless steel), and flute count (3-flute for reduced chatter). Match the body diameter to your drill chuck capacity. For high-production runs, consider carbide-tipped options for longer tool life.