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Pros & Cons
pros
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pros
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Easy Calibration
Customers are pleased with the ease of calibration for the FNIRSI Stud Finder, finding it surprisingly accurate and user-friendly even for those new to using stud finders. The rechargeable battery adds convenience.

Highlights
Quality
Works great, finds the studs and tells you where the center is!
This one is suprisingly accurate & easy to calibrate.
Bits have done about 25 4" max with little wear.
On the cut wall i tried to determine the depth accuraccy, it measured nearly 4" on a 2.
Price
Well worth spending a little bit more than buying a cheaper one.
I cant even say that about my $200.
Rebar cutter sds+ drill bits are coming, a 6" rebar/concrete bit is only $12.
My bit cost looks a lot lower than my blade cost.
Competitiveness
I have quite a few different stud finders because none of them can do all that's needed.
Overview
- How are reviewers describing this item?
found, first, center, concrete and metal. - Our engine has detected that the listing/variation has anomalous review count history. Please review the historical review count graph.
- Our engine has profiled the reviewer patterns and has determined that there is high deception involved.
- Our engine has analyzed and discovered that 55.6% of the reviews are reliable.
- This product had a total of 408 reviews as of our last analysis date on Mar 23 2025.
Helpful InsightsBETA
Posted by a reviewer on Amazon
It indicated it found a solid spot but after putting in the hook i found just dry wall
Posted by a reviewer on Amazon
My heavy backhoemounted hammer has trouble with hard reinforced concrete
Posted by a reviewer on Amazon
We were kicking around ideas after dropping the first wall
Posted by a reviewer on Amazon
So i looked around and found this at 12 price of the bosch
Posted by a reviewer on Amazon
I know the rebar pattern from the first wall and was looking for it on the second
Posted by a reviewer on Amazon
I have hit rebar with a concrete drill bit on every rebar it located
Posted by a reviewer on Amazon
Rebar cutter sds drill bits are coming a 634 rebarconcrete bit is only 12
Review Count History
Price History
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