It's just a fact of life, that many accidents that happen using power tools, are caused by various types of power saws. A mitre saw, while being really useful for making shelves or precise picture frames, really does demands a lot of respect. In fact, any saw that has a fast spinning wheel should be a cause for concern for your safety.
Only with a clear understanding of the risks involved, and by you taking responsible action, can you be sure that you will use this saw in a safe and effective manner. There is no detailed statistics recorded on accidents caused while using a mitre saw specifically.
However, the NHS website shows the following information regarding to power tool injuries:
- Lacerations and amputations - This is the most common type of injury, often involving fingers, hands, and forearms. Examples include accidental contact with the spinning blade, kickback when the material binds, or snagging of loose clothing.
- Fractures and dislocations - Injuries to bones can occur due to direct impact with the tool, falls while using the tool, or forceful reactions to blade contact.
- Eye injuries - Flying debris, dust, and sawdust can cause irritation, corneal abrasions, or even more serious damage if proper eye protection isn't worn.
- Hearing damage - Prolonged exposure to the loud noise of power tools can lead to hearing loss, tinnitus, or other auditory problems.
And for cutting tool injuries they show:
- Lacerations and puncture wounds: Similar to power tool injuries, these can occur from accidental contact with knives, saws, or other sharp implements.
- Tendon damage: Cuts to tendons, particularly in the fingers and hands, can be debilitating and require surgical repair.
- Foreign body entry: Nails, staples, or other small objects can become embedded in the skin or deeper tissues, requiring medical attention.
- Crush injuries: Fingers or hands can be crushed between tool parts or workpieces, causing fractures, soft tissue damage, and nerve compression.
These examples highlight the potential severity of power tool and cutting tool injuries, even with seemingly innocuous tools like a mitre saw. They emphasise the importance of wearing proper PPE, including safety glasses, gloves, and hearing protection, to minimize the risk of these injuries.
Essential Safety Tips
Personal Protective Equipment
The most important factor is choosing PPE that is comfortable and fits well. If that is the case, then you're more likely to wear it consistently, especially if it's not bulky or inconvenient. There are a number of safety items that you can buy and use to help keep you safe. These are:
Eye Protection
Always wear safety glasses or goggles to protect your eyes from flying chips and sawdust. The ANSI Z87.1+ approved glasses with side shields for all-around protection are the best type. You might also want to consider anti-fog coatings for better visibility in humid environments. Popular brands in the UK include Cromwell Tools, DeWalt (shown above), and Draper.
For extra protection, especially when cutting overhead or large pieces, consider a full face shield combined with safety glasses. Brands like Jackson Safety and JSP offer good options.
Ear Protection
Choose ear defenders with a Noise Reduction Rating (NRR) of at least 25 dB for mitre saw use. Look for comfortable models with adjustable headbands and soft ear cups. Popular brands in the UK include Moldex, 3M Peltor (shown above), and Honeywell Howard Leight.
As an alternative, noise-cancelling ear plugs offer convenient portability and comfort. Brands like Mack's and Alpine Hearing Protection offer effective options.
Dust Mask/Respirator
For the very best protection against fine dust particles, important when cutting MDF or other hazardous materials, choose an FFP3 respirator according to EN 149 standards. Brands like 3M (shown above) and Moldex offer reliable options.
For general dust protection, a half-mask respirator with P2 filters might suffice. Brands like JSP and Honeywell offer comfortable and effective models.
Gloves
Buy gloves with EN 388 cut resistance level 5 for maximum protection against blade cuts. Leather or Kevlar-lined gloves are good choices. Brands like Dewalt, Seibertron, and Toughbuilt offer durable options.
For general handling and grip, sturdy work gloves with good dexterity are sufficient. Brands like Dickies, Hi-Vis, and Snickers Workwear offer affordable and comfortable options.
Proper Clothing
- Avoid loose sleeves, dangling jewelry, or scarves that could get caught in the blade. Wear long trousers and long-sleeved shirts made from natural fibres like cotton or wool.
- Wear sturdy closed-toe shoes with good grip to prevent slips and falls around the workshop. Steel-toe boots offer additional protection if handling heavy materials.
Pre-operation Checks
There are a number of checks that you can do before using your mitre saw. These are:
- Inspect the blade - Always make sure the blade is clean, sharp, and free of any cracks or damage.
- Check guards and fences - Make sure all guards and fences are properly positioned and securely in place.
- Secure the workpiece - Clamp or secure the workpiece firmly to prevent movement during cutting.
- Clear the work area - Remove any tools, loose materials, and clutter from the cutting area.
Safe Operating Practices
There are a number of safe operating practices that you can do when using your mitre saw. These are:
- Never force the blade - Let the blade do the cutting, don't apply excessive pressure.
- Maintain a safe distance - Keep your hands and body away from the blade path.
- Never reach around the blade - Use push sticks or jigs for cutting narrow or small pieces.
- Unplug or remove the battery from the saw before making adjustments - Always shut off the power before changing blades, adjusting settings, or cleaning the saw.
Additional UK Tips
I have also added some UK specific tips just below. These are:
- Power supply - Use the correct extension lead with adequate amperage rating for your saw. The typical amperage draw of most mitre saws is around 10-16 amps. Be sure to use an extension lead rated for at least that amount. You can check at your local DIY store or ask an electrician for expert advice on choosing the right extension lead. Keep the extension lead as short as possible and choose a heavy-duty type with a plug protector to prevent cable damage and electrical hazards. UK-specific plug types with a BS 1363 rating are the best. For additional protection, use an RCD, especially when working outdoors or in damp environments. The RCD can power off in milliseconds, potentially preventing serious injuries.
- Emergency stop - Familiarise yourself with the location and operation of the emergency stop button. This is usually located on the handle or the control panel. Hitting that immediately cuts power to the blade in case of an accident or unintended operation.
- Residual risk assessment - Be aware of potential hazards even with safety measures in place, such as kickback or blade binding. Kickback can occur when the material binds or twists against the blade, potentially throwing the workpiece back towards the user. Forcing the blade can cause it to bind and stall, potentially generating dangerous heat and creating a risk of breakage or shattering.
Further Reading
I hope you have found this helpful and they main keys to safety are wearing the right PPE.
UK specific regulations - Electricity at Work Regulations 1989, Provision and Use of Work Equipment Regulations 1999.
