Tools & Home Improvement

Brushless Heavy Duty Rotary Hammer Drill, 20V Cordless Hammer Drill with 4.0Ah Battery/Charger, SDS Chuck, 4 Modes, Adjustable Handle, Electric Hammer Drill for Wall, Concrete, Brick, Metal, S521-1

Name: Brushless Heavy Duty Rotary Hammer Drill, 20V Cordless Hammer Drill with 4.0Ah Battery/Charger, SDS Chuck, 4 Modes, Adjustable Handle, Electric Hammer Drill for Wall, Concrete, Brick, Metal, S521-1
SKU: B0B8D21Z7T
Rating: 3.9 (133 reviews)

Tools & Home Improvement3.9· 133 Amazon ratings

Bias-adjusted across 133 Amazon ratings, Bayesian-shrunk to the category prior so the headline score reflects relative quality — not a raw star average. Cohort: Tools & Home Improvement.

12.0%

Percentile · Global

9.7%

Percentile · Cohort

Tools & Home Improvement

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Brushless Heavy Duty Rotary Hammer Drill, 20V Cordless Hammer Drill with 4.0Ah Battery/Charger, SDS Chuck, 4 Modes, Adjustable Handle, Electric Hammer Drill for Wall, Concrete, Brick, Metal, S521-1

How the score was built

Amazon ratings: 133
Raw star average: 3.9 / 5
Bayesian avg: 4.07

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Same category · Tools & Home Improvement

Brushless Heavy Duty Rotary Hammer Drill, 20V Cordless Hammer Drill with 4.0Ah Battery/Charger, SDS Chuck, 4 Modes, Adjustable Handle, Electric Hammer Drill for Wall, Concrete, Brick, Metal, S521-1

How the score was built

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