The units work well unless I over speed them in which case the brazing on the tip loses its temper & the diamonds come off. Proper lubrication and cooling with water is extremely important when using these units and,as one of my less than intelligent friends soon found out, using them in percussion mode in a drill doesn't work at all.
Verified purchase: Yes | Condition: New
I drilled a 1/4" hole in thin 6" square plywood so thee drill would not walk, Held it centered on the + mark after moistening the plywood. Then drilled, oscillating, as it cut thru the C-5 porcelain. Using a small water spray bottle helped. The bit cut "like Butter". Thanks.
Verified purchase: Yes | Condition: New
This was exactly what I needed! I had to drill out a broken drill bit from a project and these did the job. Go slow and keep these bits cool and they will grind their way through about anything.
Verified purchase: Yes | Condition: New
got work fine. fast and good response time
Verified purchase: Yes | Condition: New
Using one bit I drilled 9 holes in ceramic tiles without any decline in bit's performance.
Verified purchase: Yes | Condition: New
Only got one or two holes drill through porcelain tile per bit. Good thing that package contained 10 bits.
Verified purchase: Yes | Condition: New
Cut fantastically!
Verified purchase: Yes | Condition: New
great product i will recommend thank you
Verified purchase: Yes | Condition: New
Exceeded my expectations.
Verified purchase: Yes | Condition: New
Verified purchase: Yes | Condition: New
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