# Job Hazard Analysis: General power tool use URL: https://hardhatbinder.com/en/jha/general/power-tool-use Last updated: 2026-10-23 Everyday use of corded and cordless power tools by a general contractor crew: circular saws, miter saws, drills and impact drivers, angle grinders, reciprocating saws, and pneumatic nailers on air compressors. Covers inspection, power setup, cutting and fastening wood, metal, and masonry, bit and blade changes, and cleanup. Work may be indoors or outdoors on residential or light commercial sites. > A general example for this task. Your JHA should reflect your crew, equipment and site — review it with a competent person before work starts. ## Steps, hazards and controls ### 1. Inspect tools, cords, and guards before the shift - **Electric shock from a damaged cord, cracked housing, or missing ground pin** (High): Check every cord and plug for cuts, exposed wire, and a missing ground pin before use.; Tag any damaged tool "DO NOT USE" and pull it from service right away. Do not tape over cord damage.; Use double-insulated or properly grounded tools only. - **Cuts or kickback from a missing, wired-open, or sticking blade guard** (High): Make sure the lower guard on the circular saw snaps back closed on its own.; Never wedge or tie a guard open. Remove the tool from service if the guard is missing or broken.; Confirm the trigger works and the tool shuts off when released. ### 2. Set up power, cords, and the work area - **Electrocution from a ground fault on temporary power or a wet location** (High): Plug every corded tool into a GFCI outlet or a portable GFCI. Push the test button before use.; Use heavy-duty 3-wire extension cords rated for the tool's amps. Keep cords and connections out of water.; Switch to cordless tools in wet areas when you can. - **Trips and falls over cords and air hoses** (Medium): Route cords and hoses along walls or overhead, not across walkways or stairs.; Protect cords from vehicle and door traffic. Do not run them through doorways that can close on them. ### 3. Secure the material and set up the cut or drill - **Material shifting or binding the blade, causing kickback** (High): Clamp the workpiece or support it on sawhorses so the cut-off piece falls free.; Never hold small pieces by hand or across your leg to cut or drill.; Set the circular saw blade depth no more than 1/4 in. below the material. - **Cutting or drilling into hidden live wires, gas lines, or water pipes** (High): Check walls and floors with a stud and wire scanner before cutting into them.; Ask the supervisor to shut off and lock out circuits in the area when cutting into finished walls.; Hold tools by the insulated grip surfaces only. ### 4. Operate saws, drills, and grinders - **Lacerations or amputation from blade contact or kickback** (High): Keep both hands on the tool and stand to the side of the blade line, never behind it.; Let the blade stop completely before setting the saw down. Never pull the guard back by hand.; Use the side handle on drills and grinders to control torque and bind-up.; Do not wear loose sleeves, gloves near rotating bits, or dangling jewelry. - **Flying chips, sparks, and grinder disc fragments striking eyes or face** (High): Use only discs rated for the grinder's RPM. Keep the grinder guard between you and the disc.; Point sparks away from people and from wood, cardboard, and fuel.; Wear safety glasses at all times. Add a face shield when grinding or cutting metal. - **Silica dust from cutting or drilling concrete, block, brick, or stone** (High): Use a saw or grinder with a water feed, or a dust shroud connected to a HEPA vacuum.; Never dry-sweep or use compressed air to clean silica dust.; Wear the respirator listed in the silica exposure control plan when required. - **Hearing damage from saws, grinders, and compressors** (Medium): Place the compressor away from the work area.; Wear earplugs or earmuffs whenever you have to raise your voice to talk at arm's length. ### 5. Use pneumatic nailers and air tools - **Nail puncture wounds from accidental firing or bump-fire** (High): Use nailers with a sequential (single-shot) trigger when available.; Keep your finger off the trigger when carrying the nailer. Never point it at anyone.; Keep your free hand at least 12 in. away from the nailing point. - **Whipping air hose or blown fittings** (Medium): Use hoses and fittings rated for the compressor pressure. Install a safety check or whip check on hoses over 1/2 in. inside diameter.; Never blow dust off your clothes or skin with compressed air. ### 6. Change blades, bits, and discs - **Accidental start while hands are on the blade or bit** (High): Unplug the tool, remove the battery, or disconnect the air hose before any change or adjustment.; Use the manufacturer's wrench and spindle lock. Remove chuck keys before restarting.; Wear cut-resistant gloves when handling sharp blades. - **Burns from hot bits and discs right after use** (Low): Let bits and discs cool before touching them. ### 7. Clean up and store tools - **Slips and trips from scrap, sawdust, and loose fasteners** (Medium): Pick up scrap and offcuts as you go. Bend over or remove protruding nails.; Use a HEPA vacuum for dust instead of sweeping. - **Damage to cords and tools left on the ground or in the weather** (Low): Unplug, coil cords loosely, and store tools in cases or a dry gang box.; Report any damage found during cleanup to the foreman. ## Required PPE - Safety glasses — ANSI Z87.1 with side protection, worn at all times when tools are running. - Face shield — Over safety glasses when using angle grinders or cutting metal. - Hearing protection — Earplugs or earmuffs when running saws, grinders, nailers, or near the compressor. - Hard hat — Where there is overhead work or falling object hazards. - Work gloves — Cut-resistant gloves for handling blades and material. Do not wear gloves near drill bits or other spinning parts that can grab them. - Safety-toe boots — Sturdy, slip-resistant safety-toe boots at all times. - Respirator — When cutting masonry or concrete, as listed in the silica exposure control plan; requires fit test and medical clearance. ## Training - Hands-on training on each tool's safe use, guards, and manufacturer instructions before using it. - Training on GFCI use, cord inspection, and electrical hazards. - Silica hazard training and the site exposure control plan for anyone cutting masonry or concrete. - Respirator fit test and medical evaluation if respirators are required. - Powder-actuated tools may only be used by workers trained and carrying the manufacturer's operator card. ## Emergency For a serious cut or amputation: stop work and shut off the tool. Call 911 and give the full site address. Apply firm direct pressure to the wound with a clean cloth and use a tourniquet if bleeding won't stop. Wrap any severed part in clean, damp gauze, place it in a sealed bag on ice, and send it with the victim. For electric shock, kill the power before touching the person. ## Official sources - [29 CFR 1926.300](https://www.ecfr.gov/current/title-29/section-1926.300) — Hand and power tools — general requirements - [29 CFR 1926.302](https://www.ecfr.gov/current/title-29/section-1926.302) — Power-operated hand tools - [29 CFR 1926.304](https://www.ecfr.gov/current/title-29/section-1926.304) — Woodworking tools - [29 CFR 1926.404](https://www.ecfr.gov/current/title-29/section-1926.404) — Wiring design and protection - [29 CFR 1926.102](https://www.ecfr.gov/current/title-29/section-1926.102) — Eye and face protection - [29 CFR 1926.101](https://www.ecfr.gov/current/title-29/section-1926.101) — Hearing protection - [29 CFR 1926.1153](https://www.ecfr.gov/current/title-29/section-1926.1153) — Respirable crystalline silica - [29 CFR 1926.25](https://www.ecfr.gov/current/title-29/section-1926.25) — Housekeeping --- Source: HardHat Binder, operated by Leadspire LLC. Templates to be reviewed by a competent person before use; not legal advice; not affiliated with OSHA.