Category:Angle Grinders

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Tool Species
Angle Grinders

A tool species is a logical grouping of tools based on similarity of function, use, and safety.

Asylum Tool Species Info
To use any of the tools listed on this page, you are required to complete the testing program described here. You should get training or equivalent experience at the Asylum or elsewhere before testing.
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This document is an internal Artisan's Asylum training document and is provided "as is", to be used as a reference only. Use of this document for any purposes other than as reference material (i.e., for the purposes of training and testing users on tools or equipment by other commercial entities or individuals) is not advised. In no event shall the authors of this material, or Artisan's Asylum, Inc., be liable for any claim, damages, or other liability whether in action or contract, arising from, out of, or in connection with the use of the information in this document for training, testing, or on-going safe use of fabrication equipment. Please consult your own lawyers and subject matter experts if you are looking to develop your own safety curriculum for fabrication equipment operation. Tool operators are responsible for their own safety, including reading and understanding the owners manual for this equipment and all of the warnings it contains.



Angle grinders are handheld power tools that use iron oxide grinding discs, buffing wheels, wire wheels, flap wheels, and other discs to remove, clean, and polish metals.

Personal Protective Equipment

  • Standard shop personal protective equipment (safety glasses, no long hair, no flowing clothes, etc.) are required.
  • A face shield is strongly suggested.
  • Hearing protection is strongly suggested.
  • Work gloves are suggested, though be careful to not entangle them in the grinding disc.

Safe Operation

  • Clamp materials or make sure they are secure before grinding to prevent excessive vibration or part movement.
  • Keep both hands on the grinder, and neither hand on or behind the workpiece.
  • Start grinder before making contact with the material.
  • Hold the grinder on the material with even pressure, and move it slowly back and forth over the surface of the material. Do not apply heavy pressure, or keep the grinder in one place on the material.
  • DO NOT place the grinder on any surface while it is still in motion but not being used for grinding, or use a surface to stop a grinder.
  • Note that the workpiece will likely be very hot immediately after grinding.
  • Keep the grinder safety engaged whenever the tool is not in use, if applicable.
  • Avoid orienting the tool so that debris is flung towards you, others, or into nearby airspace that bystanders pass through. Attempt to orient the tool so that debris is flung towards the ground or the cutting surface if at all possible.

Common Maintenance Operations

  • Inspect all grinding wheels to ensure they are not nicked, excessively worn, or filled with non-ferrous metals.
  • Install new grinding wheels by depressing the wheel lock, trying to move the wheel to make sure the wheel lock is engaged, and then using the appropriate spanner wrench to remove the nut holding the wheel on. Remove the old wheel, install a new one, and retighten the nut.
  • The orientation of the nut matters. One side is marked "This side against 1/4" wheel". The other side should face the disc when using 1/8" cutoff wheels, flap wheels, etc.

Allowable Materials

  • Materials are governed by the type of wheel you are using. Research what materials are allowed on which wheels before starting work.
  • No non-ferrous materials should be ground with iron oxide wheels. Only flapwheels, buffing wheels and the like should be used on non-ferrous metals.

Pages in category "Angle Grinders"

The following 2 pages are in this category, out of 2 total.


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