HARFINGTON 16.5mm Drill Bit 13mm Reduced Shank Round 4241...
Good for: Shoppers who want a reliable, well-reviewed product
Watch out for: No major red flags detected
Last analyzed: March 2026
Total Reviews
81
On Amazon
Verified
78%
Good
Amazon Rating
4.4
Original rating
Savinoo Rating
4.2
Adjusted rating
Our Recommendation
SAFE TO TRUST - Reviews appear authentic and reliable for making purchase decisions.
Analysis Summary
- LOW RISK (Score: 100/100) HARFINGTON 16.5mm Drill Bit 13mm Reduced Shank Round 4241...'s reviews appear mostly authentic. Positive Indicators: 78% of reviews are from verified purchases, which is good..
Customer Reviews from Amazon
Most Helpful Review
"For the 7.99 price/free shipping, it gets 5 stars. The reduced shank allows me to use a 3/8” chuck with the 15.5mm drill bit. Precision sized black oxide, works well with mild steel….On par with other black oxide bits, inexpensive, and available in less common sizes."
wendy
For the 7.99 price/free shipping, it gets 5 stars. The reduced shank allows me to…
For the 7.99 price/free shipping, it gets 5 stars. The reduced shank allows me to use a 3/8” chuck with the 15.5mm drill bit. Precision sized black oxide, works well with mild steel….On par with other black oxide bits, inexpensive, and available in less common sizes.dan
Surprisingly sharp and good quality for the price, but I'll admit that I'm only cutting…
Surprisingly sharp and good quality for the price, but I'll admit that I'm only cutting aluminum with this bit.jragon
It works as described.
kevin ellis
Drill bit worked great
Anonymous
Just what I needed
tony m berry
I purchased this drill for the low price to get through a single job, but…
I purchased this drill for the low price to get through a single job, but I was surprised at the quality. It’s sharp. Well made with high speed steel. Diameter was correct. Shank size was correct. Durability is much better than expected already.What Customers Talk About
Commonly Praised
Commonly Complained
Review Quality Analysis
Review quality helps identify authentic customer feedback. Longer, detailed reviews (50+ words) typically indicate genuine experiences, while high percentages of short reviews (under 20 words) may suggest incentivized or fake feedback.
Average Words
55
✓ Detailed reviews
Long Reviews
17%
Average detail
Short Reviews
30%
✓ Low brief reviews
Review Length Distribution
Authentic vs Brief Reviews
Average Word Count Gauge
Benchmark: 30 words = moderate, 50+ words = detailed & authentic
55
avg. words per review
Interpretation: Review quality appears within normal range for this product category.
Review Velocity
Review velocity tracks how quickly reviews are posted. Steady, gradual accumulation is natural, while sudden spikes or bursts (20+ reviews in a single day) may indicate incentivized campaigns or coordinated activity.
Average Per Day
0.08
Natural pace
Max in One Day
1
Normal range
Steady Velocity Detected
Reviews posted at a consistent, natural pace over time — typical of organic customer feedback.
Rating Breakdown
This chart shows how customers rated HARFINGTON 16.5mm Drill Bit 13mm Reduced Shank Round 4241.... Products with authentic reviews typically show a bell curve with most ratings in the 3–4 star range. A heavily polarized distribution — many 5★ and 1★ with few middle ratings — can be worth investigating further.
Ready to buy HARFINGTON 16.5mm Drill Bit 13mm Reduced Shank Round 4241...?
Our analysis is based on 81 reviews.
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How does this compare?
This product scores 100/100 — better than most products we've analyzed. A strong trust signal.
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