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Sworker 10 PCS Tungsten Carbide Burr.

Designed in Germany, Manufactured by Germany and USA-made 6-Axis CNC, Made in China. Package Includes: 10 PCS 3mm shank carbide burr set, 1 twenty-slots plastic clamshell box (10 empty for more storage) like old cassette tape holder, 1 paper box and 1 manual.

Head Shapes: End-Cut Cylindrical, Ball-Nosed Cylindrical, Ball, Oval, Ball-Nosed Tree, Tree, Flame, Cone, Inverted Cone. Head Dia.: 6mm. Head L.: 5 to 12mm. Head Spiral Flutes Qty.: 14. Head Material: Tungsten Carbide. Head Hardness: HRA90. Shank Dia.: 3mm. Shank L.: 38mm. Shank Material: 40Cr. Overall L.: 43 to 50mm.

Cut Style: Double Cut, Max Rotation Speed: 70000 RPM, Direction of Rotation: Right Hand/Clockwise, Feed Direction: Generally counter-rotationally or with a swinging motion. direction of rotation to get fine finish. Optimal Drive Tool: Straight, Angle Die Grinder, Robot. Average Drive Tool: Drill, Drill Press. Drive Type: Air or Electric Rotary Tool. Optimal Fix Type: 3mm or 1/8"(3.175mm) Collet and Nut, Average Fix Type: 3-jaws Chuck.

Materials Applications: Hard Wood, Balsa, Wax, Soapstone, Slate, Marble, Granite, Concrete, Steel, Hardened Steel, Weld-Seam, Stainless Steel, Brass, Copper, Bronze, Aluminum, Cast-Iron, Cast-Steel, Cobalt, Nickel, Titanium, Zinc, Earthenware, Terracotta, Porcelain, Fiberglass, Plastic, Rubber, Fiber-Reinforced Plastics and so on. Burrs Applications: Carving, Engraving, Sculpting, Deburring, Contouring, Chamfering, Milling, Cleaning, Porting, Cutting, Grinding, Polishing, Elongating, Tooling, etc.

Manual: 1, Always wear ear, eye, face protection and protective safety gloves. 2, Generally, for rough work, move the burrs across the workpiece counter-rotationally. 3, Pass the tool over the workpiece in the direction of rotation to achieve fine finishes. 4, Min Clamping depth is 2/3 of the shank, if you have to clamp less, pls low speed. 5, If rough running, strong vibrations and increased flying sparks, pls use a new one. 6, Do not apply too much pressure, Let the speed do the work. Smaller burrs require faster speeds. 7, Soft materials, such as aluminum, use a grinding oil to reduce debris clogging. Grind glass, use water as lubricant. 8, Elongate holes, grip tool firmly with two hands and use a swinging motion, which prevents chatter, result in a safer cut. 9, Avoid impact loads, otherwise parts teeth will break off, shank will bend. Do not sink the burr for more than 1/3 of its periphery. 10, Recommendation for drives: shank 1/8" (75 to 300W), shank 1/4" (from 300W), for coarse cuts, 500W+ advantageous.