Clean
Remove dust and sawdust from the saw using compressed air or a vacuum. Use a dry microfiber cloth to wipe down surfaces. Ensure motor air slots are clean to prevent overheating.
Recommended Products
- Compressed Air$5
- Dry Microfiber Cloth$5
Dewalt
The DEWALT DWS780 is a professional-grade 12-inch sliding miter saw built for decades of precision cutting. Its robust metal construction and powerful 15-amp motor tackle dimensional lumber and hardwoods without strain. The innovative XPS shadow line system never needs calibration, maintaining perfect accuracy even after years of job site abuse. With extensive cutting capacities and reliable performance, this workshop cornerstone delivers exceptional long-term value.
The DeWalt DWS780 miter saw is a genuine BIFL purchase for serious woodworkers, scoring highly in durability (8.5) and repairability (8.0). This saw has proven itself through decades of professional use with minimal performance degradation. The XPS shadow line system outperforms lasers for accuracy and longevity, while the motor handles demanding materials without faltering. Despite mediocre warranty coverage and sustainability practices, this tool's tank-like construction and parts availability make it a workshop investment that can last 20+ years. Worth the premium at $499 sale price for professionals; weekend DIYers may find cheaper alternatives sufficient.
The DeWalt DWS780 miter saw is designed with good serviceability in mind, with accessible parts and strong long-term durability evidenced by users reporting years of reliable service.
Bottom line: This is a serviceable professional tool built to last decades with proper maintenance. Standard parts are available and most repairs can be handled by users with basic mechanical skills.
Finally, something built right. The DWS780 proves DeWalt still knows how to make tools that last decades, not just warranty periods. Users report replacing 28-year-old DeWalt saws with this model and running 2012 units daily without issues.
Bottom line: The community is split on convenience features (dust collection is garbage, it's a space hog), but united on durability - this saw is an investment that'll outlive most marriages.
DeWalt offers a better-than-average warranty package for the DWS780 miter saw, with tiered coverage that provides meaningful protection.
Bottom line: The 3-5 year coverage with responsive service puts this above average, though users should note it doesn't cover normal wear after the first year or any user abuse. The warranty is respected by users with minimal complaints about claim denials.
The DeWalt DWS780 is consistently praised as a durable, accurate workhorse with years of reliable service reported. The r/BuyItForLife community and professional reviewers both strongly endorse this saw as a long-term investment.
Bottom line: Despite some design flaws, this saw is highly recommended by serious woodworkers and professionals seeking a tool that will last decades, especially when purchased on sale around $499.
Based on 199 reviews
We rate products using a 10-point scoring system focused on what matters most: durability, reliability, and repairability. Our scores are built from a wide net of sources: Amazon reviews, Reddit threads, expert opinions, brand sites, Google reviews, and what people are actually saying online.
Exceptional durability spanning decades
XPS shadow line remains accurate without calibration
Powers through hardwood without bogging down
Maintains perfect accuracy after years of use
Poor dust collection system
Abrupt motor start causes blade movement
Heavy weight limits portability
Large footprint with space-consuming sliding rails
Based on our comprehensive product research and scoring methodology

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Recommended: Weekly / As Needed•Regular maintenance helps ensure optimal performance and longevity of the DWS780 miter saw.
Remove dust and sawdust from the saw using compressed air or a vacuum. Use a dry microfiber cloth to wipe down surfaces. Ensure motor air slots are clean to prevent overheating.
Recommended Products
Apply a dry lubricant to the rails and pivots. Regularly check and adjust the rails for smooth operation. Ensure the kerf plate is properly aligned and undamaged.
Recommended Products
Store the saw in a dry area, away from chemicals that could damage the guard. Keep the saw stable and secure to prevent tipping.
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