Ratings & Reviews for Kobalt 3/16-in 4.75mm #10 Standard High-speed steel Countersink Twist Drill Bit
Ratings may include incentivized customer reviews.
What Customers Are Saying
The adjustable countersink drill bit is generally well-received, with users praising its convenience and effectiveness in producing clean, even holes. Key features include the adjustable collar for controlling depth and the combination of drilling and countersinking in a single step. However, some users have reported concerns about the bit's durability and longevity, with issues like premature breakage or dulling, as well as difficulty finding replacement bits.
Customer review summary generated by AI, including incentivized reviews.The bit is replaceable
Would RecommendThe bit is replaceable
From 1_SLASH_8-in 1-5_SLASH_8-in High-speed steel Countersink Twist Drill Bit Verified Purchaser
Poor design for small hinges
Would Not RecommendThe diameter of the blunt face on the top of this bit is much too large. A 5/64" pilot hole is appropriate for a #6 or smaller screw but the tip of this bit is too large to center in the mating holes of a hinge.
It Works
Would RecommendProduct performs as expected . Like tht it is adjustable for different srew lengths
From 11_SLASH_64-in 4.35mm #8 Standard High-speed steel Countersink Twist Drill Bit Verified Purchaser
Works fine.
Would RecommendWorks fine. It is not easy to be extremely accurate, but it is close.
From 5_SLASH_64-in x 6-in High-speed steel Self-Centering Hinge Bit Verified Purchaser
the too is for up coming projet
for cwnrweing
From 5_SLASH_64-in x 6-in High-speed steel Self-Centering Hinge Bit Verified Purchaser
tool is used to dill a hole in center
Would Recommendvery good
From 7_SLASH_64-in 6-in High-speed steel Self-Centering Hinge Bit Verified Purchaser
Perfect
Would RecommendGreat for cabinets
From 9_SLASH_64-in 3.55mm #6 Standard High-speed steel Countersink Twist Drill Bit Verified Purchaser
Leaves Marks
Would Not RecommendProduct worked as expected but left circular indented marks on the boards when making pilot holes.
From 5_SLASH_64-in x 6-in High-speed steel Self-Centering Hinge Bit Verified Purchaser
Disappointing
Would Not RecommendEither these are manufactured poorly or the design is at fault. I should have been tipped off because there were several packages in stock that had been bought, tape placed over the package and returned by someone else. I bought two of these and both have the same behavior. When operating a drill they have an extreme wobble that requires a lot of care to try to get the tool to line up with what you are drilling making it unusable for a precision job.
Flimsy and didn’t last 10 minutes
Would Not RecommendBroke so soon
From 7_SLASH_64-in 1-5_SLASH_8-in High-speed steel Countersink Twist Drill Bit Verified Purchaser
Design flaw makes this unusable in some situations
Would Not RecommendI bought both the larger and smaller of these self-centering bits. Turns out that the smaller one has a significant design flaw: the face of the housing is nearly blunt, such that it does not fit into the recess in the metal shelf parts. If the bit's housing doesn't sit in the hole in your hardware, it cannot function -- I ended up trying to 'guess' about the centering position, which is the exact thing I was trying to avoid. The face of the self-centering mechanism should be sized appropria...
Saves time but holes not perfectly centered
Would Not RecommendSaved me time but some holes came out a little off-center.
From 5_SLASH_64-in x 6-in High-speed steel Self-Centering Hinge Bit Verified Purchaser