I bought this bit to drill porcelain tile which is the ultimate challenge for a diamond bit.The bit was fine for three holes. The fourth hole took over 10 minutes to drill. After 8 holes there was no diamond coating left. Yes, I used water cooling and slow drilling speed. I bought a second one and got 6 holes out of it before it died. So I spent $35 for 14 holes. I still had many holes to drill. I bought a 20 pack of cheap Chinese hollow tube bits. $14 for 20. I drilled 3 holes each with the two first. They cut a lot faster and make cleaner holes. This Milwaukee bit looks beautiful but after one hour you throw it away and it's very expensive per hole.
Verified purchase: Yes | Condition: New
Drill works on floor tile.
Verified purchase: Yes | Condition: Pre-owned
Thank you so much very nice 👍
Verified purchase: Yes | Condition: New
Good too
Verified purchase: Yes | Condition: New
Excelente
Verified purchase: Yes | Condition: New
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