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.Adjustable drill bit length is easy to change.
Would RecommendAdjustable drill bit is easy to change the length of the hole it drills. I have had some that the set screw was hard to adjust and would not hold drill bit in place.
From 7_SLASH_64-in 1-5_SLASH_8-in High-speed steel Countersink Twist Drill Bit Verified Purchaser
Auto-Center your pilot hole.
Would RecommendWorks great at centering your pilot hole in things like hinges.
From 7_SLASH_64-in 6-in High-speed steel Self-Centering Hinge Bit Verified Purchaser
Broke too easily
Would Not RecommendI'm not sure I drilled more than 20 holes with this before it broke.
This product will break
Would Not RecommendThis was a cheap product so I bought two. Both broke. I bought a more expensive brand its working swell
From 9_SLASH_64-in 3.55mm #6 Standard High-speed steel Countersink Twist Drill Bit Verified Purchaser
Self centering bits
Not very durable. After setup and tightening the set screw, the bit still came loose with light duty usage.
From 5_SLASH_64-in x 6-in High-speed steel Self-Centering Hinge Bit Verified Purchaser
Good to anpint
Drilled well but came apart. The allen set screw let’s you put bits in, but this bad boy fell apart with the reamer coming from of the shaft. No way to taste it back n
From 9_SLASH_64-in 3.55mm #6 Standard High-speed steel Countersink Twist Drill Bit Verified Purchaser
If you need to do a single hinge it’s worth it
Would RecommendYou can’t go wrong. Excellent asset if you do any type of door hardware hinges etc. would buy again.
From 7_SLASH_64-in 6-in High-speed steel Self-Centering Hinge Bit Verified Purchaser
Does not center consistently
Would Not RecommendThe centering mechanism is inconsistent. The shaft that houses the bit moves laterally. You have to look at the bit within the shaft before starting to drill to make sure it is centered. It seems to be a design issue and not a quality problem with the particular bit I received.
From 7_SLASH_64-in 6-in High-speed steel Self-Centering Hinge Bit Verified Purchaser