What does it really cost?
Stores side by side, shipping included and price history without discount theatre.
DeWALT · Angle grinder
DWE4257
DWE4257-QS
MPN DWE4257-QSExact identifier match
Price checkHistorical low-5.6% vs 30-day average
Product knowledge card · Angle grinder
Correct technique
- Inspect the tool, guards, fasteners, power source and working accessory before use.
- Choose the correct accessory, setting, range and working method for the material and task.
- Stabilize the work and your stance; keep hands and bystanders outside the operating path.
- Start under control and let the tool work at its intended load instead of forcing it.
- Disconnect or isolate the energy source before changing accessories, clearing jams, cleaning or servicing.
- Use only compatible blades, discs, bits or cutters with the correct size and speed/load rating; keep guards in place and control the line of cut.
Handling
- Carry and store the tool switched off or otherwise made safe; protect cutting edges, moving parts, leads and connectors.
- Keep ventilation openings, sensors and contact surfaces clean and dry unless the equipment is specifically rated for wet use.
- Do not bypass guards, interlocks or overload protection.
Common problems
- Worn or damaged working accessory
- Loose, misaligned or contaminated parts
- Overheating, abnormal vibration, noise or smell
- Wrong accessory, setting or power source for the task
- Damaged lead, battery, connector, hose or housing
Injury risks
- Cuts, crushing, impact or entanglement from the working part or moving workpiece
- Eye, hearing or respiratory exposure from chips, dust, fumes or noise where the task creates them
- Electrical, thermal, pressure or stored-energy injury where the tool or process contains those hazards
- Kickback, blade/disc breakage and high-velocity fragments are key hazards for cutting and grinding tools.
What shortens service life
- Repeated overload or forcing the tool
- Blocked cooling, accumulated dust or moisture ingress
- Wrong, blunt, damaged or poorly fitted accessory
- Drops, impacts and poor transport or storage
- Ignoring calibration, lubrication, service intervals or battery-storage requirements
Care and maintenance
- Clean after use without driving contamination deeper into the tool.
- Inspect wear parts, guards, cables, batteries, hoses and fasteners regularly.
- Replace damaged accessories early; lubricate, calibrate and service only as specified by the manufacturer.
- Store dry, protected from impact and with batteries/pressure systems in the recommended state.
Use cases
- Primary use is determined by the linked profession and task; do not extend the tool beyond its rated purpose.
- Use the profession links below to see where this tool belongs in real work.
PPE and protection
- Select PPE from the actual task and material risk assessment; eye protection and suitable work footwear are common baselines, with hearing, respiratory, hand, face or fall protection added when required.
Current best2 809 Kč
30-day average2 976,40 Kč
All-time low2 809 Kč
Maximum3 131 Kč
Historical
Price history
MinimumAverageMaximum
Current offers5 · Sorted by total price. Sponsored offers never jump the queue.
SellerItemShippingTotalAvailability
PRICE WATCH
Sign in to watch the price.Watch this price
Set a target. We will flag it when the total price gets there.