Ratings & Reviews for Kobalt 9/64-in 3.55mm #6 Standard High-speed steel Countersink Twist Drill Bit
Ratings may include incentivized customer reviews.
What Customers Are Saying
The adjustable countersink drill bit is a versatile tool that can accommodate a range of screw sizes and allows for controlled depth adjustment. It works well on softer materials like wood and composites, but the countersink heads may wear out over time. The main strengths are its convenience and ability to drill and countersink in a single operation, making it useful for projects like cabinet and furniture installation. However, some users have reported issues with the drill bit breaking or becoming loose, especially when working with harder materials, and replacement bits can be difficult to find. Careful use and maintenance are recommended for optimal performance.
Customer review summary generated by AI, including incentivized reviews.Good quality.
Would RecommendThe right tool for the job.
From 7_SLASH_64-in 1-5_SLASH_8-in High-speed steel Countersink Twist Drill Bit Verified Purchaser
Not horrible
I like the longer bit but did bend easily.. could use improvement
From 11_SLASH_64-in 4.35mm #8 Standard High-speed steel Countersink Twist Drill Bit Verified Purchaser
Take care when setting set screw.
Bit bent when using set screw for adjustable countersink head.
Verified Purchaser
Pre Drilling Holes for Screws
Would RecommendThis drill bit is excellent for pre drilling a hole for screws going through tin and wood to mount vent covers to a wall and for drilling cabinet holes for the knobs or handles and recessing the screw heads as needed. A tool that makes an amateur look like a professional.
Verified Purchaser
Good
Would RecommendGood
From 1_SLASH_8-in 1-5_SLASH_8-in High-speed steel Countersink Twist Drill Bit Verified Purchaser
Spring housing and tip plunger wobble so badly, the tool is not usable. See my video, and believe the other reviewers!
very sturdy.
Would Recommendquality countersink.
From 11_SLASH_64-in 4.35mm #8 Standard High-speed steel Countersink Twist Drill Bit
Drill Bit
Worked well in the beginning, but dulled faster than expected
From 1_SLASH_8-in 1-5_SLASH_8-in High-speed steel Countersink Twist Drill Bit Verified Purchaser