DRILLCO (SA 3L6) Cylindrical Carbide Bur 6" Extra Long Shank, Double Cut Size:3 8" x 3 4" and straight cuttingXP2 and XP3 PCS31230 TGP236 and straight cuttingXP2 and XP3 blades with laser cut expansion slots eliminate blade warping due to heat build upPremium XP2 and XP4 cutting matrix means XP2 gives 2 x's the life of standard blades this burr provides aggressive stock removal while maintaining a smooth finish on a variety of materials including steel 1" Shank Diameter 1 4" Overall Length (OAL) 6 3 4" (6" Shank) Cut Type Double Cut Material Solid Carbide Head Steel Shank What's Included (1) Protective Plastic Storage Tube