💎 Drill smarter, not harder — unlock flawless holes every time!
The Semderm Diamond Drill Bits Set features 10 precision diamond-coated hole saws ranging from 1/4" to 1-1/5". Crafted from upgraded carbon steel with corrosion-resistant nickel plating, these bits deliver sharp, smooth cuts on hard surfaces like glass, ceramic, porcelain, marble, and granite. Designed with large clearance holes for water cooling, they ensure extended bit life and efficient drilling across diverse materials.
| Manufacturer | Semderm |
| Part number | Semderm0001 |
| Item Weight | 1 g |
| Package Dimensions | 14 x 11 x 3 cm; 1 g |
| Item model number | Semderm0001 |
| Color | 10 PCS(1/4"-1 1/5") |
| Style | Modern |
| Finish | Carbon Steel,Nickel |
| Material | Marble,Glass,Nickel,Porcelain,Carbon Steel,Stone,Diamond |
| Item Package Quantity | 1 |
| Number Of Pieces | 10 |
| Batteries Included? | No |
| Batteries Required? | No |
T**N
For $7 you can’t complain! I got these bits so I could drill into an old candle pot that I had been using as a plant pot, but it needed a drainage hole. Went write through with ease, but I recommend sanding it first before drilling so the stone tip bit can grip it!
R**.
G**L
Brocas de excelente calidad y muy utiles
I**M
Good for home use
C**G
Great tools for cutting holes in Ceramic Pots for Bonsai
Trustpilot
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