3/8 CARBIDE 6-FLUTE 90 DEG. COUNTERSINK3/8 CARBIDE 6-FLUTE 90 DEG. COUNTERSINK 78086, 2" OAL, 1/4" SHANK 3/8" Diameter, 1/4" Shank Diameter, 2" Overall Length, 90-Degree Included Angle, .090" Maximum Flat on Point. Standard six fluted carbide countersinks are designed for hardened steel, high temperature alloys & other countersinking, chamfering or deburring tough jobs. Because of multiple flute design,chip loads are generally smaller. Even at maximum speeds, chatter-free machining is possible! Solid carbide constructed with steel shanks on tools 3/8" and larger. Rigid set-ups and good machine tool maintenance is a must! Carbide tools are very fragile and rigidity is a necessity, thus hand-held applications are not recommended! Comes standard in 60,82 and 90-degree included angles. Also available in 100 and 120-degree. High speed steel, carbide tipped and coated also available, as are single fluted type.
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