? SL-3: Taper shap-Radius 3/8"x1-1/16"-1/4"shank? SF-3: Tree shaped radius end 3/8" x 3/4"-1/4"shank? SA-3: Cylindrical shape 3/8" x 3/4"-1/4"Shank? SC-3: Cylindrical radius end 3/8" x 3/4"-1/4" shank? SE-3: Oval shape 3/8"x5/8"-1/4"shank? SD-2: Ball shape 5/16"X1/4"-1/4"shank? SC-1: Cylindrical radius end 1/4" x 5/8"-1/4" shank? SL-1: Taper shap-Radius 1/4"x5/8"-1/4"shank? SH-1: Flame shape 1/4"x5/8"-1/4"shank? SA-1: Cylindrical shape 1/4" x 5/8"-1/4"ShankUses:? Generally use with handheld electric or pneumatic tool drive, can be widely used machining iron, ship building industries, machinery etc. for steel casting, carbon steel, alloy steel, stainless steel, hardened steel, copper aluminium etc.? This kit contains 10 burs in assorted style heads on 1/4" shanks, Ideal for cleaning up welds, grinding weld beads, smoothing rough castings, or porting cylinder heads wide variety of grinding and deburring tasks.??Long Life?It is ten times more durable than high speed steel and more than 200 times higher than alumina grinding wheel.Warm Tips:? Ensure your burr shank is well inserted into your collet and clamped down tightly.? Please wear an eye mask to protect your eyes from filings.
?Quantity?10pcs Solid Double Cut Carbide Rotary Burrs file Die Grinder Bits, Shank diameter: 6.35mm (0.25 inch) with 1/4 inch shank for most die grinder drill
?Durable?Machined from new raw tungsten carbide, hardness can reach to < HRC85, sharp and durable
?High Quality Processing? High degree of finish, can produce a variety of high-precision mold cavity
?Usage?Carbide rotary drill file is widely used in metal products, tool manufacturing, engineering, model construction, woodcarving, welding, chamfering, casting, deburring, grinding, cylinder head transplant and engraving
?Shapes Included?Ball shape, Cylinder shape, Flame shape, Oval shape, Tree shape radius end, Taper shape-Radius, Cylindrical radius end