DWS780 12 Inch Double Bevel Sliding Miter Saw

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.

Product Specifications

Dimensions:32.57"L x 23"W x 19.5"H
Lifespan:15+ years
Material:N/A
Country of Origin:China
Manufacturing:Primarily manufactured in China; DeWALT saws, including the DWS780, are assembled in China with global materials.

Research Summary

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.

  • Bulletproof construction and motor maintain perfect accuracy even after years of jobsite abuse and frequent relocations
  • Excellent parts availability and accessible repairs make servicing straightforward for users with basic mechanical skills
  • Three-year warranty with one-year free service is adequate but not exceptional; normal wear coverage ends after the first year
  • Premium price ($499-700) justified for professionals and serious woodworkers who will leverage its decades-long lifespan
  • Users universally praise the maintenance-free XPS shadow line but consistently criticize the ineffective dust collection system

Repairability Notes

8.0

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.

  • Parts & Service: DeWalt provides good parts availability and a 3-year warranty with 1-year free service contract. Users report still using models from 2012 with continued accuracy.
  • Common Repairs: The XPS shadow line system occasionally fails but can be replaced. Motor issues and fence alignment can be adjusted with standard tools as mentioned in multiple reviews.
  • Limitations: Heavy weight (70+ lbs) makes transport difficult, and the dust collection system has a design flaw where rubber flaps collapse under suction - would need modification for improvement.

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.

Durability Notes

8.5

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.

  • Tank-like construction: Users consistently praise the solid build that maintains perfect accuracy even after years of job site abuse and frequent moves.
  • XPS system built to last: Unlike finicky lasers, the LED shadow line never needs calibration and users report it working flawlessly for years - one called it a freaking dream to use.
  • Motor that won't quit: Powers through pressure-treated lumber and hardwood without bogging down, though the aggressive startup kick takes getting used to.

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.

Warranty Notes

6.5

DeWalt offers a better-than-average warranty package for the DWS780 miter saw, with tiered coverage that provides meaningful protection.

  • Three-Year Limited Warranty: Covers defects in materials and workmanship, which is solid for a power tool in this category.
  • One-Year Free Service Contract: DeWalt will maintain the tool and replace normally worn parts for free during the first year.
  • 90-Day Money Back Guarantee: Allows return for a full refund if performance doesn't meet expectations.

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.

Social Analysis

8.5

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.

  • Praise: XPS shadow line system universally loved for perfect accuracy without calibration. Robust build quality maintains precision even after years of heavy use.
  • Complaints: Poor dust collection is frequently criticized. Many note the abrupt motor start causing blade movement. Large footprint with rear-sliding rails limits workshop placement options.
  • Longevity: Users report daily usage since 2012 and replacing 28-year-old DeWalt saws with this model, indicating excellent durability.

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.

BIFL Total Score:
8.0Excellent
DWS780 12 Inch Double Bevel Sliding Miter Saw
Crowd Favorite
Amazon
$649

Product Scorecard

BIFL TOTAL SCORE
8.0
Durability Score
8.5
Repairability Score
8.0
Social Score
8.5
Warranty Score
6.5

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.

Pros and Cons

What Users Love

Exceptional durability spanning decades

XPS shadow line remains accurate without calibration

Powers through hardwood without bogging down

Maintains perfect accuracy after years of use

Areas for Improvement

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

Image Gallery

DWS780 12 Inch Double Bevel Sliding Miter Saw - Main view

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Frequently Asked Questions

Product Care & Maintenance Guide

Recommended: Weekly / As NeededRegular maintenance helps ensure optimal performance and longevity of the DWS780 miter saw.

Step 1

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
Step 2

Condition / Maintain

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

  • Dry Lubricant Spray$10-15
Step 3

Protect / Store

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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