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Grinding Safety

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Grinding Safety

Course Overview

Grinding Safety is a four module online course built on 29 CFR 1910.215. It covers grinder types and the eight grinding hazards, pre operation inspection and the ring test, guards, work rests, PPE, wheel mounting, lockout tagout and emergency response.

  • Match the wheel to the machine before you mount it, because 29 CFR 1910.215(d)(2) puts that check on you.
  • Ring test every wheel, suspended on a pin and tapped with something non metallic, never held in both hands.
  • Hold the work rest inside one eighth of an inch, the maximum 29 CFR 1910.215(a)(4) allows, and recheck it.
  • 3 hours, self-paced
  • Instant certificate
  • Mobile friendly
$24.99

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Everything You Need to Know
About This Course

The course runs four modules of two parts each, with a quiz after every module, then a final exam and scenarios.

  • Bench, Angle, Die, Pedestal, Surface and Cylindrical Grinders
  • The Eight Grinding Hazards, Ranked by Consequence
  • Why Wheels Explode: Overspeed, Cracks and Bad Mounting
  • Hexavalent Chromium from Grinding Stainless Steel
  • Noise, Hand Arm Vibration Syndrome and Irreversible Damage
  • Sparks, Fire Watch and Electrical Shock
  • Pre Operation Inspection of Wheel, Guard and Work Rest
  • The Ring Test, Step by Step
  • Wheel Mounting: Flanges, Blotters and Hand Tight Nuts
  • Guard Coverage and Work Rest Gap Limits
  • Safety Glasses and Face Shield Together, Not Either Or
  • Respirators Against Dust Masks
  • Bench Grinder and Angle Grinder Operating Technique
  • Kickback and Body Position Off the Wheel Plane
  • Lockout Tagout in Six Steps, Including Verification
  • Eye Injury, Wheel Explosion, Laceration and Fire Response
  • Wheel Dressing, Glazing, Loading and Out of Service Criteria
  • OSHA and ANSI Standards, Worker Rights and Recordkeeping

OSHA StandardOSHA 29 CFR 1910.215
Course Duration3 hours
Format100% online — narrated with interactive media
Passing Score70% or higher on the final exam
CertificatePrintable certificate of completion available immediately upon passing
LanguagesEnglish
Device CompatibilityDesktop, laptop, tablet, and smartphone
ProgressProgress saved automatically, stop and restart without losing your place
Instructor SupportAccess professional instructors for guidance and answers to your course-related questions.
AcceptedOur courses meet federal standards, but state requirements may vary. Please verify before purchase.
ProvidereTraining

Anyone about to be put on a grinder for the first time, and the supervisors who have to sign them off as competent. It is built to be taken before the first job rather than after an incident.

  • Machinists and machine operators who use bench grinders, pedestal grinders, or portable angle grinders
  • Metalworkers, welders, and fabricators who perform grinding as part of surface preparation or finishing
  • Maintenance technicians and mechanics who use grinding tools for repair work
  • Manufacturing production workers assigned to grinding stations
  • Supervisors and foremen who oversee grinding operations
  • Safety officers responsible for inspecting grinding equipment and enforcing PPE requirements
  • Workers required by their employer to demonstrate documented grinding safety training
  • New hires being onboarded into roles involving abrasive-wheel machinery

The hazards in this course follow the abrasive wheel, so it fits any trade that cuts, shapes or finishes metal, or cuts concrete and rebar on site.

  • Metal fabrication and metalworking shops
  • Manufacturing and industrial production facilities
  • Machine shops and precision machining operations
  • Welding and cutting operations
  • Automotive repair and body shops
  • Foundries and metal casting facilities
  • Tool and die manufacturing
  • Heavy equipment maintenance and repair
  • Aerospace parts machining
  • Shipyards and marine fabrication
  • Facility maintenance departments in industrial plants
  • Educational and vocational training shops, including community colleges and trade schools

Grinding Safety or a Wider Power Tool Course?

Take this one before anyone touches an abrasive wheel. Take the others to cover the rest of the shop.

 

Why a Grinding Wheel Explodes, and What Prevents That

The course treats wheel failure as the hazard that separates grinding from every other hand tool, because the fragments do not stay near the machine.

  • Overspeed. A wheel carries a maximum operating speed and the machine carries a spindle speed. 29 CFR 1910.215(d)(2) says the spindle speed is checked before mounting to be sure it does not exceed the speed marked on the wheel. The course's worked scenario, a 3,450 RPM wheel on a 3,600 RPM grinder, is a stop.
  • Hidden cracks. Cracks from a drop, rough handling or freezing are often invisible. 29 CFR 1910.215(d)(1) calls for wheels to be inspected and sounded immediately before mounting. Suspend the wheel on a pin, tap it with something non metallic, and listen for a clear ring rather than a dull thud.
  • Bad mounting. Mounting is where good wheels get broken. Matching flanges, new blotters on both faces, and a spindle nut taken to hand tight and no further, because over tightening concentrates stress in the wheel.
  • Damaged wheels. And a wheel with any visible chip, crack or gouge comes off the job regardless of how minor it looks, and regardless of whether it passed the ring test.

Every one of those four checks happens before the machine is switched on, which is the course's argument for training the inspection rather than the technique.

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Frequently Asked Questions

Everything you need to know about the Grinding Safety.

There is no federally mandated expiration date for this training certificate. However, health and safety plans should be reviewed and updated annually, and whenever workplace conditions, hazards, or regulations change. Refresher training is recommended to stay current with evolving OSHA standards and best practices for safety program management.

You must score at least 70% on the final exam to pass and receive your certificate of completion. The course includes knowledge-check quizzes that do not count toward your final grade but help prepare you for the exam. If you do not pass on your first attempt, you can retake the exam.

Yes. This course is 100% online and fully self-paced. There is no in-person component required. The course uses a combination of audio, full-motion video, text, and graphics.

Grinding safety training is a workplace safety education program that teaches workers how to safely operate abrasive grinding machinery, recognize the hazards of wheel breakage and flying debris, and use the proper personal protective equipment. eTraining's course provides approximately 1 hour of instruction covering OSHA 29 CFR 1910.215 and ANSI B7.1, the general industry standards for abrasive wheel machinery. Upon completing the course, participants receive a printable certificate of completion.

OSHA 29 CFR 1910.215 requires employers to ensure that any worker who uses abrasive wheel machinery is trained in its safe operation. This includes machinists, metalworkers, welders, maintenance technicians, and any worker who uses a bench grinder, pedestal grinder, or portable angle grinder as part of their job. Many employers also require documented grinding safety training as part of their internal safety program, even where OSHA does not mandate it by name.

OSHA 29 CFR 1910.215 is the federal regulation for abrasive wheel machinery in general industry. It establishes the mandatory legal requirements for guards, work rests, tongue guards, wheel speed, and inspection. ANSI B7.1 is the voluntary consensus standard developed by the American National Standards Institute that provides detailed technical requirements for the manufacture, care, and use of abrasive wheels. OSHA references ANSI B7.1 as the technical basis for its grinding requirements, so the two standards work together — OSHA sets the legal minimum, and ANSI B7.1 provides the detailed engineering guidance.

Yes. eTraining's Grinding Safety course is built directly on OSHA 29 CFR 1910.215 and references ANSI B7.1, the consensus standard on which OSHA bases its grinding requirements. Upon passing the final exam with a score of 70% or higher, you receive a printable certificate documenting your training. The certificate is accepted by employers nationwide as proof of grinding safety training.

The course is divided into 4 modules covering: the hazards of grinding operations (wheel breakage, flying particles, entanglement, sparks and fire risk); proper inspection, mounting, and dressing of abrasive wheels; wheel guards, work rests, and tongue guards required by OSHA 29 CFR 1910.215; personal protective equipment for grinding including eye and face protection, hearing protection, and respiratory protection where dust is present; and safe operating practices including ring testing, speed limits, and lockout/tagout during wheel changes. The course concludes with a final exam.

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