What this guide covers
This is the general layer: principles that hold across a shop, and the classes of hazard to plan for. It does not replace a machine's manual. For setup, guards, minimum stock size, feed direction, blade and cutter changes, clearances and operating procedures, follow the exact manual for the machine in front of you; makers differ, and where BenchRoot has a machine-specific safety guide it is linked below.
Note— Whose rule is it?
Rules here come from four kinds of source, and each is named. A maker's manual speaks for that maker's tools. An OSHA standard is a workplace rule that applies to employers. A NIOSH figure is a recommendation. Anything else is BenchRoot's synthesis and says so. None of them makes a home shop subject to workplace law.
Control the hazard before relying on protection
NIOSH ranks five levels of control by general effectiveness: elimination, substitution, engineering controls, administrative controls and personal protective equipment. Applied to a shop — BenchRoot's examples, not NIOSH's — that means avoiding a risky operation where you can, choosing a safer tool or process for the job, using guards, riving knives and dust capture at the source, following the maker's procedure, and then wearing eye, hearing and respiratory protection for what remains. NIOSH advises against relying on PPE alone when other effective controls are available. Safety glasses do not make an unguarded cut safe.
Hazards across the shop
| Hazard | General control | What the machine's manual decides | Read more |
|---|---|---|---|
| Blade or cutter contact | Guard in place; hands out of the cutting path | Guard configuration, hand position, push devices | Table saw blade guards |
| Kickback and ejected work | Support the work; keep out of its path | Each machine's own mechanism and remedy | Table saw safety |
| Small or unstable work | Hold it with a clamp, fixture or push device, or use another process | Minimum stock sizes and approved holding methods | Band saw safety |
| Entanglement | No loose clothing, jewellery or gloves near moving parts; long hair tied back | Which parts rotate or reciprocate | This guide |
| Wrong tool or accessory | Use what the maker recommends, within its ratings | Accessories, speeds and sizes allowed | Router bit guide |
| Dust | Capture at the source; filter the room after | Dust ports and extraction | Dust collector guide |
| Noise | Quieter process where possible; hearing protection | Sound data, where given | This guide |
| Finishes and solvents | Product label and SDS; ventilation; rag disposal | — | Finishing oil guide |
| Electricity | Sound cords and plugs; specified supply; power off for service | Supply and grounding | Workshop setup guide |
| Trips and clutter | Clear floor, good light, stock stored | — | Workshop setup guide |
General controls are BenchRoot's synthesis; the machine's manual decides the specifics.
Guards and safety devices
Grizzly's manuals say guards and covers reduce accidental contact with moving parts and flying debris, and must be properly installed, undamaged and working before the machine is run. Use the guard and configuration the manual requires for each operation. Some operations call for a different setup in the manual — SawStop's, for example, uses the riving knife without the guard for cuts the guard cannot make, such as non-through cuts. Where a maker documents that, follow it exactly and restore the standard safeguards afterwards. Do not remove or defeat a guard for convenience. Table saw guards, riving knives and splitters are covered in table saw blade guards.
Hands, workholding and small parts
- Keep hands out of the cutting path. Grizzly's band saw manual puts it as never positioning hands in line with the blade. How close is too close depends on the machine, the guard and the work; BenchRoot gives no universal distance.
- Secure the work. DEWALT warns that holding work by hand or against the body is unstable and can lead to loss of control, and asks for clamps or another practical way to secure it. Some machines are fed by hand against a fence instead; the manual decides which. See clamps, the workbench guide and vises.
- Push sticks and push blocks keep fingers away from the blade and help control the work. Makers set different thresholds and designs for when to use them; follow the machine's manual and its safety guide, such as table saw safety or band saw safety.
- Small parts reduce hand clearance and control. Grizzly asks for small or narrow work to be fed with push sticks, push blocks, a jig, a vise or a clamping fixture; sometimes the safer answer is another tool or process altogether.
Kickback is not only a table saw hazard, but each machine has its own mechanism, terms and remedies: a table saw's is set out in table saw safety, a track saw's in track saw safety, and jointers, planers and routers in their own guides, such as how to use a jointer and how to use a router.
Changing blades, bits and cutters
- Cut the power first. Grizzly says to disconnect a machine from power before adjustments, tooling changes or service; DEWALT, to disconnect the plug or the battery pack before adjusting, changing accessories or storing a tool. Then follow the maker's change procedure.
- What workplace rules say. OSHA's lockout/tagout standard applies to employers, for servicing where unexpected start-up could injure employees; it excludes cord-and-plug equipment that is unplugged with the plug under the exclusive control of the person doing the work. It is a workplace rule, not a hobby-shop requirement, but unplugging and keeping the plug in view is the same idea.
- A removed battery stops the motor, not the hazard. Edges stay sharp; handle the tooling as its maker directs.
- Remove keys and wrenches. On machines that use a chuck key or an arbour wrench, both makers say to remove it before switching on; Grizzly warns tools left on a machine can become projectiles.
- Damaged or dull tooling. Grizzly says not to run dirty, dull, cracked or badly worn blades, because dull blades take more effort; DEWALT says sharp, clean cutting tools are less likely to bind and easier to control. Neither makes a sharp tool safe on its own.
- Right accessory, within its rating. Use accessories the maker recommends, of the size and type the machine accepts, and never above their rated speed — router bits are covered in the router bit guide and the router speed chart, table saw blades in table saw blades, drill chucks in the drill guide.
Protective equipment
| Hazard | Control first | Protection, where the task calls for it | Whose rule |
|---|---|---|---|
| Flying chips | Guards, hold-downs, dust collection | Safety glasses or a face shield | Grizzly; OSHA 1910.133 for employers |
| Noise | A quieter tool or process; shorter exposure | Hearing protection | Grizzly; OSHA and NIOSH limits for workplaces |
| Fine dust | Capture at the source; room filtering | A NIOSH-approved respirator | Grizzly; OSHA for workplace programs |
| Finishes and solvents | Ventilation as the label says | What the product label and SDS specify | The product's maker |
Protection depends on the hazard, the product and the task; not every item applies to every job.
- Eyes. Grizzly calls for ANSI-approved safety glasses or a face shield when operating or watching machinery, and says everyday eyeglasses are not approved safety glasses. OSHA's rule for employers requires side protection against flying objects, protection that incorporates or fits over prescription lenses, and devices meeting ANSI Z87.1.
- Hearing. For workplaces, OSHA's limit is 90 dBA as an 8-hour time-weighted average, with a hearing conservation program from 85 dBA; NIOSH recommends keeping exposure below 85 dBA averaged over eight hours. NIOSH says occupational hearing loss is permanent but preventable. Machine makers' sound figures often omit test conditions, and BenchRoot does not calculate protected exposure.
- Breathing. Start with dust capture; OSHA calls engineering controls the preferred approach and PPE a short-term solution, and in workplaces respirators belong within a respiratory protection program. A respirator's protection depends on its type, its fit and the hazard. Collection is explained in the dust collector guide, shop vacuums and shop air filters.
- Clothing and gloves. Grizzly says not to wear loose clothing, gloves, neckties or jewellery that can catch in moving parts, and to tie back long hair. That is about moving machinery; gloves may be right for handling rough stock or chemicals, as a product's label says.
Dust, finishes and fire
OSHA treats wood dust as a health hazard, and warns that accumulations of fine wood dust can be a fire and explosion hazard. Visible chips are not the fine dust that stays in the air; capture at the source, filter the room afterwards and keep fine dust from building up, as the dust guides set out. Finishes and solvents add chemical and fire hazards: follow the product label and safety data sheet for ventilation, storage and disposal. NFPA warns that rags wet with oil-based finish can heat as they dry and ignite; its procedure is in the finishing oil guide, and applying finishes in how to apply a wood finish.
Electricity
- Cords and plugs. Grizzly says a damaged or worn cord or plug should be disconnected and replaced, and to unplug by the plug, not the cord.
- Switches. DEWALT says not to use a tool whose switch does not turn it on and off.
- Wet places. Grizzly says not to use machinery in wet, cluttered or poorly lit areas.
- Supply and wiring. Run each machine on the supply its manual specifies; Grizzly leaves electrical installation and repair to qualified personnel. Planning outlets is covered in the workshop setup guide. BenchRoot gives no wiring, breaker or conversion instructions.
The person at the machine
- Alert and undistracted. Grizzly says full mental alertness is required and never to operate machinery under the influence of drugs or alcohol, when tired, or when distracted.
- Bystanders. Keep children and visitors clear of the work, and stop if they become a distraction (Grizzly). Grizzly also asks for machines to be installed where access can be restricted; BenchRoot sets no age at which machinery becomes safe to use.
- Don't force it; don't leave it. Let the machine cut at its designed rate, and turn it off and wait for moving parts to stop before walking away (Grizzly).
- Stop when something is wrong. Grizzly's advice for any difficulty with an operation is to stop using the machine. A strange sound, a binding cut or a guard that will not sit right is a reason to switch off and find out why.
- Housekeeping. A clear floor, stored offcuts and good light reduce trips and slips; the workshop setup guide covers layout and light.
Safety— If someone is hurt
Serious injuries — deep cuts, eye injuries, amputations, electrical shock or chemical exposure — need prompt emergency care. Product-specific first aid is on the product's label and safety data sheet. This guide does not give medical instructions.
Before switching on, where it applies
- Manual read for this machine and this operation
- Correct blade, bit or cutter, undamaged and secured
- Guards and safety devices configured as the manual requires
- Keys and wrenches removed
- Work supported and held as the manual allows; push devices at hand
- Cutting path and surroundings clear; bystanders away
- Dust collection connected where required
- Eye, hearing and respiratory protection for the task
Machine-specific safety guides
- Saws: table saw safety, table saw blade guards, band saw safety and track saw safety.
- Dust: the dust collector guide, shop vacuums and shop air filters.
- Finishes: the finishing oil guide and food-safe wood finishes.
- Other tools: moisture meter safety, and the shop itself in the workshop setup guide.
Sources
Each rule is attributed to its source: a maker's manual (for that maker's machines), an OSHA standard (a workplace rule for employers, not law for a home shop), a NIOSH recommendation, or BenchRoot's synthesis, which is marked as such. No universal distance, stock size, speed, push-stick threshold or exposure time is given; those are set by each machine's manual or by the applicable regulation. This guide is not medical advice.
- 1.
Hierarchy of Controls. National Institute for Occupational Safety and Health.
Used for: The five levels of the hierarchy of controls in NIOSH's order of general effectiveness, from elimination to PPE, and the advice that employers should not rely on PPE alone when other effective controls are available.
- 2.
Model G0817 14" Resaw Bandsaw with Foot Brake owner's manual (for models manufactured since 05/25). Grizzly Industrial, 2025.
Used for: One machine maker's general safety rules: read the manual; guards and covers installed, undamaged and working before operating; disconnect power before adjustments, tooling changes or service; remove chuck keys and wrenches; correct tool for the job and recommended accessories only; no forcing; inspect for damaged parts; dull, cracked or worn blades not used; no loose clothing, gloves, neckties or jewellery near moving parts, long hair tied back; ANSI-approved safety glasses, with everyday eyeglasses not approved; hearing protection near loud machinery; a NIOSH-approved respirator for hazardous dust; full alertness, never under drugs or alcohol, tired or distracted; children and bystanders kept clear; no wet, cluttered or poorly lit areas; never leaving a machine running unattended; electrical work by qualified personnel; a damaged or worn cord or plug disconnected and replaced; stopping when an operation gives difficulty; hands out of line with the blade; small or narrow work fed with push sticks, push blocks, a jig, vise or clamping fixture.
- 3.
DCD777 Cordless Drill/Driver instruction manual (English). DEWALT.
Used for: A tool maker's general power tool safety: disconnect the plug or battery pack before adjustments, accessory changes or storage; remove adjusting keys and wrenches before switching on; not using a tool whose switch does not turn it on and off; dressing properly without loose clothing or jewellery; sharp, clean cutting tools being less likely to bind and easier to control; securing work with clamps rather than by hand or against the body.
- 4.
29 CFR 1910.133, Eye and face protection. U.S. Department of Labor, Occupational Safety and Health Administration.
Used for: Workplace rules for employers: eye protection with side protection against flying particles, protection that incorporates or fits over prescription lenses, and devices meeting ANSI Z87.1.
- 5.
Occupational Noise Exposure: Overview. U.S. Department of Labor, Occupational Safety and Health Administration.
Used for: OSHA's workplace limit of 90 dBA as an 8-hour time-weighted average and an 85 dBA action level for a hearing conservation program, and NIOSH's recommendation to keep exposures below 85 dBA for eight hours.
- 6.
About Occupational Hearing Loss. National Institute for Occupational Safety and Health.
Used for: NIOSH's recommended limit of 85 dBA averaged over an eight-hour workday, and occupational hearing loss as permanent but preventable.
- 7.
29 CFR 1910.147, The control of hazardous energy (lockout/tagout). U.S. Department of Labor, Occupational Safety and Health Administration.
Used for: The workplace lockout/tagout standard covering servicing and maintenance where unexpected start-up could injure employees, and its exclusion for cord-and-plug equipment that is unplugged with the plug under the exclusive control of the person servicing it.
- 8.
Wood Dust: Hazard Recognition. U.S. Department of Labor, Occupational Safety and Health Administration.
Used for: Wood dust as a health hazard and accumulations of fine wood dust as a fire and explosion hazard.
- 9.
Wood Dust: Possible Solutions. U.S. Department of Labor, Occupational Safety and Health Administration.
Used for: Exhaust ventilation at the points where dust is produced as the preferred control, PPE as a short-term solution, and respirators within a respiratory protection program in workplaces.
- 10.
Owner's Manual, 10" Professional Cabinet Saw, Model PCS31230. SawStop.
Used for: A table saw maker documenting the riving knife, without the guard, for cuts the guard cannot make.
- 11.
Safety with Oily Rags (safety tip sheet). National Fire Protection Association, 2019.
Used for: Rags wet with oil-based finish able to heat as they dry and ignite.
About this guide
Written by BenchRoot Editorial. How BenchRoot sources, checks and corrects its pages is set out in the Editorial Policy. If something here is wrong or unclear, the contact page explains how to tell us.
