Angle Grinder Safety - Grinder Safety SA133R022717 ANGLE GRINDER SAFETY 1.0 PURPOSE 1.1 To establish minimum safety requirements to be followed when an angle grinder is

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  • Angle Grinder Safety


    McCarls Safety & Health Procedures


  • Angle Grinder Safety


    Table of Contents

    1.0 PURPOSE 1

    2.0 SCOPE 1


    4.0 REFERENCE 1


    6.0 POLICY 2


  • Angle Grinder Safety



    1.0 PURPOSE

    1.1 To establish minimum safety requirements to be followed when an

    angle grinder is used by improving safety by reducing the number

    of tasks where angle grinders are used to perform cutting and

    grinding operations.

    2.0 SCOPE

    2.1 This procedure is applicable to all McCarls employees.


    3.1 The Project Manager/Supervisor is responsible for implementing

    and enforcing this procedure.

    3.2 The Safety Department is responsible for monitoring compliance

    with this procedure.

    3.3 Foreman is responsible for:

    - Evaluating each task to ensure an angle grinder is the correct tool for the job and directing workers to use alternative safe

    tools/methods to complete the task.

    - Reviewing guard adjustment and proper body positioning. - Completing the Foremans Task Plan for Safety and ensuring

    the crew understands the contents.


    29 CFR 1926.300 Tools Hand & Power

    Milwaukee & Metabo Operators Manuals

    Dewalt Operators Manual


    5.1 Kickback A sudden reaction to a pinched or snagged rotating

    wheel, backing pad, brush or any other accessory. Pinching or

    snagging causes rapid stalling of the rotating accessory which in

    turn causes the uncontrolled power tool to be forced in the

    direction opposite of the accessorys rotation at the point of the


  • Angle Grinder Safety


    5.2 Proper Body Placement The best position where you

    have the greatest control over the grinder.

    6.0 POLICY

    6.1 General Safety Rules

    6.1.1 All angle grinders must have the guard and handle in place.

    Guards are designed to protect the workers hand/body from

    contacting the wheel and to protect a worker from being

    struck by flying debris in the event of a wheel failure.

    Operation of the angle grinder without the side handle

    could cause loss of control of the grinder in the event of

    kick-back. If a task cannot be completed with the guard

    and/or handle in place, STOP work & notify the foreman.

    Foreman are responsible for evaluating the scope of work

    & determining a safe method for completion. Safe methods

    may consist of using an alternative safe tool (sawzall, porta

    band saw, etc) or an alternative safe method to complete


    6.1.2 Dress properly. Do not wear loose clothing or jewelry.

    Keep your hair, clothing and gloves away from moving


    6.1.3 Use clamps or other practical ways to secure and support

    the work piece to a stable platform. Do not hold the work

    by hand or against your body.

    6.1.4 Prior to using the angle grinder, evaluate the task by

    referencing Section 6.3 Approved Task to determine if it is

    the correct tool for the job. Whenever possible use

    alternative safe tools such as a porta band or sawzall.

    6.1.5 Prior to daily use or after every tool change, complete a test

    run. Hold the angle grinder away from the body & run the

    tool for 60 seconds.

    6.1.6 After shutting down the angle grinder, wait 5 seconds for

    the wheel to stop spinning before setting it down.

    6.1.7 Disconnect the plug from the power source before making

    any adjustments, changing accessories, or storing the tool.

    6.1.8 Never use cutting wheels for grinding. Cutting discs must

    not be subjected to any lateral pressure.

  • Angle Grinder Safety


    6.1.9 Never use grinding wheels for cutting.

    6.1.10 When using an angle grinder, use proper body placement

    and DO NOT over reach. Proper body placement is

    defined as the position where you have the greatest control

    of the grinder.

    6.1.11 Before using a grinder or installing a new wheel, inspect

    the wheel for chips and cracks. Remove and discard bad

    wheels immediately.

    6.1.12 Read the nameplate on the grinder to ensure:

    - The nameplate is legible. - The RPM of the wheel matches the RPM of the grinder. - The size of the wheel does not exceed the maximum

    dimensions of the grinder.

    6.1.13 Keep work areas clean and well lit. Eliminate tripping

    hazards by stringing cords overhead or using mats to

    protect them.

    6.1.14 Do not use electrical equipment in explosive atmospheres.

    Inspect work area to ensure there are no flammables or

    explosives. Make sure to follow Customers Safe Work

    Permit and Procedure.

    6.1.15 Keep two hands on the angle grinder at all times. This will

    help control the grinder in the event of a kick-back related


    6.2 Cutting Disc Process

    6.2.1 All cutting discs shall be maintained and stored with the

    site superintendent or their designee. The designee shall

    not be a tool room attendant or a foreman.

    6.2.2 Cutting discs shall not be stored within the general work

    area or tool room, used or new.

    6.2.3 Steps to safely use a cutting disc includes: Employees shall contact their foremen and request a


  • Angle Grinder Safety

    SA133R022717 Foremen shall review the task to determine whether

    the use of a cutting disc is the most feasible to

    complete that task. If the foremen deems the use of a cutting disc

    necessary, he/she shall fill out APPENDIX A

    Grinder Cutting Disc Authorization and contact the

    site superintendent or their designee. The site superintendent or their designee shall

    determine the feasibility of using a cutting disc.

    Once the superintendent or their designee agrees

    with the foremen that the cutting disc is the only

    feasible option, a cutting disc can then be given to

    the foremen. Upon getting the site superintendents or their

    designees signature, the foreman shall review the

    permit with the employee prior to providing the disc

    to them. Once the cutting task is complete, the used disc

    shall be returned to the site superintendent or their


    6.3 Personal Protective Equipment

    6.3.1 When operating an angle grinder workers are required to

    wear a face shield with safety glasses underneath, gloves

    and long sleeves appropriate for the task. Gloves must

    allow for adequate grip between the workers hand and the

    grinder, cotton gloves are not appropriate for use. Use of

    foam sealed safety glasses with a face shield is required.

    6.4 Recommended Tool Use

    6.4.1 For cut off tasks that cannot be completed using alternative

    safe tools, it is recommend that the DeWalt Cut Off tool

    (Model DWE46044) be used when feasible.

    6.5 Approved Tasks

    6.5.1 Listed in the tables below is a list of tasks in which the use

    of an angle grinder is either, authorized, authorized with

    caution, or prohibited. Any deviation from this procedure

    requires the approval of the Superintendent or above.

  • Angle Grinder Safety


    Authorized With Caution Task Caution

    Cutting a weld Be aware of kick-back from binding

    Cutting boiler plates Be aware of kick-back, potential

    hex-chrome hazards

    Cutting boiler tubes Be aware of kick-back, potential

    hex-chrome hazards

    Cutting bolts Be aware of kick-back, potential

    hex-chrome hazards

    Cutting box panels Use alternative tools when feasible.

    Cutting couplings Be aware of kick-back, potential

    hex-chrome hazards

    Cutting fittings Use alternative tools when feasible.

    Cutting locks Last resort: be aware of kick backs

    and hands off lock

    Cutting masonry Respirator required due to potential

    silica dust exposures

    Cutting pipe Pipe must be secured to prevent kick

    back, potential hex-chrome exposure

    if stainless steel materials. Use

    alternate method when feasible.

    Cutting plate Use alternate method when feasible.

    Cutting roller studs Be cautious of coatings and chrome


    Cutting screw strips Use alternate method such as snips,

    when feasible.

    Cutting sheeting Coatings, use alternate tool such as

    nibblers or snips when feasible.

    Cutting steel Use alternative tools when feasible.

    Cutting toe plate Possible lead paint, kickback, use

    alternate tool if possible.

    Demolition Potential hazardous materials,


    Prohibited Angle Grinder Tasks Cutting aluminum flashing Cutting pins

    Cutting all-thread Cutting rebar

    Cutting angle iron Cutting road mesh

    Cutting cable Cutting scaffold material

    Cutting cable tray Cutting scaffold trees

    Cutting conduit Cutting steel mesh

    Cutting grating Cutting uni-strut

    Cutting handrail Grinding threads

    Cutting insulation Grinding uni-strut

    Cutting junction box Sharpening ot


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