BoschCC2430 Clic-Change 1/4 in. Self-Centering Drill Bit Assortment (3-Piece)

Perfect for drilling precise holes for cabinet hardware and door hinges. They have made me a lot of money!

The product was as stated and after using I was very pleased with the results. Replaced multiple hinges in my home with no problems.

I JUST discovered these little gadgets!They are such a wonderful idea!When you have a number of holes to drill in the center of a metal hole (like hinges, caster wheel base etc...), these will drill you a hole (or at least. a pilot hole) 100% in the center every time with mindless ease!I remember futsing around trying to mark the center of the hole with a pencil and NEVER getting it right and getting frustrated! With this, you just put the right size in the drill and buzz! you're done!!! PErfect every time!

This set's blister package suggests an application to prepare holes for size 6, 7 and 8 fasteners.Drill bit sizes used in the set are 3/32, 7/64 and 1/8, smallest to largest. These sizes are blind stamped on each tool as well.Features a phosphate treatment to inhibit oxidation. Easily disassembled to replace the broken bits if needed. Drill bits are of the HSS variety and held in place by a set screw which can be removed with a 1/8 inch allen key. Drill bit lengths appear to be the commonly found jobber length bits that are found at your local tool center. Use these for a nicely centered pilot hole in preparation for hinge installation.I am grateful that this set claims to be made in the USA.There is an audible gritty sound that these make when used, although you won't likely hear this over the noise of your cordless driver.

Another high quality product from Bosch

These work great when installing hinges on new doors

Gives you perfectly centered holes for mounting hinge plates

I bought these for a project needing many perfect pilot drill holes. I researched for a tool that would self-center the drill bit and I looked at many different brands and many different reviews. I used the #6 and the #8 size of this set on my project. I'm very impressed at how helpful and useful these self-centering drill bits are. I am 100% satisfied and I highly recommend this set. They look and feel and perform as high quality. My biggest concern was if there was drill bit depth adjustment on these tools. I can confirm that the drill bit depth is adjustable. Just loosen the set screw and it is easily to adjust the bit. Buy with confidence that you too will be impressed and 100% satisfied. Tried and tested and confirmed to be excellent in all respects.