In machining operations (turning, milling, drilling, etc.), sharp burrs (burr residues) form on part edges, at hole entrances or on internal surfaces after cutting. Hand tools known as deburring tools (deburring scrapers) are used to remove these burrs, give the part a clean chamfer/radius and ensure operator safety.
Watch Temak Teknik’s detailed review video below showing deburring tools, blade angles, special blade forms and application methods:
Deburring Blade Types and Angle Classification
- 10° Blades (e.g. C10 / B10): Used for general deburring of standard steels and soft metals [01:57].
- 20° Blades (e.g. C20 / B20): Offer a steeper cutting angle; suitable for deeper chamfering at hole entrances and along side edges [02:08].
- TiN (Titanium Nitride) Coated Blades: Provide long tool life on hardened steels, heat-treated parts and highly abrasive hard materials [02:17].
- C-Form (Hook / Notch) Blades: Used to remove hard-to-reach burrs on the back face of holes by inserting the blade through the hole and pulling it back [05:00].
- Ceramic Blade Deburring Tools: Enable micro-deburring and finishing of materials such as plastics, polyamide and acrylic without scratching the part [10:50].
Application Methods and Deburring Tool Types
1. Deburring Holes and Outside Diameters (Swivel Ball-Bearing Handles)
Thanks to the ball bearing at the tip of the handle, the blade can rotate freely through 360°. By turning the tool around the hole or along the edge of a shaft, the operator produces a smooth, circular chamfer [03:00].
2. Back-Side Hole Deburring (Telescopic / Hook Holders)
For burrs left on the back face of the part, the hook blade is inserted into the hole, seated against the back face and pulled back to shear off the burr [07:41].
3. Deburring 90° Corners and Side Faces
Double-sided curved or angled blades sit precisely on 90∘ corners. A corner chamfer is produced with a single, continuous pulling stroke [06:59].
4. Micro-Finishing and Precision Operations
In the defence, aerospace and electronic enclosure industries, extremely fine, scalpel-shaped micro-deburring tools used under a microscope are preferred for removing micro-burrs [11:29].
Points to Consider During Use
- Correct Amount of Pressure: Pressing too hard at the hole entrance or along edges restricts the blade’s movement. Apply gentle pressure, letting the free-rotating ball bearing do the work [01:09].
- Continuous Stroke: Do not pause while drawing the tool along side faces; otherwise a dwell mark will be left on the workpiece surface [03:45].
- Convenient Storage: By opening the rear cap of ergonomic deburring handles, spare blades can be stored safely inside the body [12:12].