9 Pcs Countersink Drill Bit Set - 5 Pcs 2-Flute Countersink Drill Bit with Aluminum Alloy Depth Stop Collar, HSS Bearing Stopper Anti-Scratch, 82° Counterbores 1/4” Hex Shank for Woodworking

Decent set, produces very smooth countersinks. The length that the drill bit extends can be adjusted for shallower or deeper holes, and the depth of the countersink can also be adjusted. Drill bits are exchangeable if they get dull or broken. Minor complaint - after adjusting the drill depth, you have to really tighten it down to prevent slipping. Would be nice if it had a second set screw for a better hold. And I would like to have had a smaller drill and countersink in the set for #6 and below screws.

Works well, just what I needed.

I actually bought this as a gift for my husband, who does a fair bit of DIY woodworking projects, and he was absolutely thrilled with it. Having screws sit flush or even slightly recessed is key for a clean finish, and this set really delivers on that front. What we really like: - Adjustable Depth Feature: Being able to fine-tune the countersink depth is incredibly useful for different screw sizes and wood types. - Clean Cuts: No major tear-out or splintering, even on softer woods. - Good Quality: The bits feel solid, not flimsy at all. - Convenient Case: Keeps everything tidy and protected. - Versatility: You get both adjustable and fixed-depth bits, so you're covered for most situations. ! Husband Approved: He was genuinely excited about this gift and has been putting it to good use!

I got this to use for woodworking and these drill bit sizes are for #8 screws and larger in hardwoods and I wanted something that included #4 and #6 sizes. My fault for not more closely checking the sizes before purchase so I can’t blame them too much I just don’t know many woodworkers using #14 screws, so I wish they included smaller bits in place of the larger ones. Maybe others will find it more useful. Other than that, no complaints it does a good job creating consistent mark free countersunk screw holes.

Works as expected. Nice case

I found them to be of a good and sturdy. Haven't gotten a lot of use out of them to truly validate accuracy but so far they appear to be.

Perform as described.

Very easy to use and well marked. Plenty of sizes to ensure you have the right bit for the screw size