Carbide Rotary Burrs
Carbide rotary burrs are rotary tools for grinding and material removal, used with air die grinders, flexible shafts and Dremel-type tools. Each head shape has a standard letter (A–M) per DIN 8033 / ISO 7755. Click a shape below to filter the collection to that exact type.
The letter on the right is the standard shape code. Click to see only that type.
Cylindrical head cutting on the periphery. For flat surfaces, straight edges and removing material in a line.
Cylindrical with teeth on the face too, so it cuts at the tip — for corners, shoulders and blind spots.
Cylindrical with a rounded end (radius end) that leaves no sharp mark at the base; ideal for smooth blends.
Round head for concave surfaces, opening holes, internal curves and spherical recesses.
Egg-shaped head for smooth, convex surfaces and elliptical recesses.
Tree-shaped head with a rounded tip — for corners, internal radii and hard-to-reach spots.
Tree with a pointed tip for hard-to-reach spots, fine shaping and internal corners.
Slim, pointed flame-shaped head for spherical recesses and spots with limited access.
Conical head with a rounded tip — for angled surfaces with a smooth finish.
Conical head for angled surfaces, edge breaking (chamfer) and bevels.
Reverse cone for undercuts and internal bevels a normal cone can't reach.
90° cone for countersinking, edge breaking and weld preparation.
Complete collections of shapes in a case, with a Ø3 mm or Ø6 mm shank.
Ø3 mm or Ø6 mm shank
Ø6 mm is the standard for professional use and more rigid. Ø3 mm suits small Dremel-type tools. Check your tool's collet.
Tooth cut
General-purpose burrs for metal have a double (cross) cut for a smooth, controlled finish; the aluminium range has an open single cut (ALU cut) that won't clog on soft materials.
Tungsten carbide
They cut hard materials such as steel, stainless, cast iron and welds, holding their edge far longer than HSS burrs.
Rotation speed
They work at high RPM with light pressure — let the tool do the cutting. A larger head diameter needs lower RPM.
What do the letters A–M mean?+
They're the standard head-shape code per DIN 8033 / ISO 7755 (A = straight, D = ball, H = flame, M = conical, etc.). The same letter means the same shape at any manufacturer.
Which shape should I start with?+
For general use, one straight (A) and one ball (D) cover most jobs. If you often work different forms, a cased set is the most cost-effective choice.
Can I work aluminium with a regular burr?+
Better not — soft materials clog the flutes and the burr sticks. For aluminium, copper and plastics choose the special ALU-cut burrs.
Why does it break or go blunt quickly?+
Usually from too much pressure or the wrong RPM. Keep a steady angle, apply light pressure and don't bend the shank sideways — carbide is hard but brittle.