Kobalt (4-Pack) 1/4-in 6.30mm #1 J x 75.00mm Carbide tipped Right handed Glass and Tile Drill Bit

Item #3209748 |
Model #DTC-30007
Double bladed carbide tip for longer life
Water lubrication required for best results
Suitable for drilling into glass and tiles
4 Point tip for faster drilling
General | |||
|---|---|---|---|
Material | Carbide tipped | Shank Type | Hex |
Package Quantity | 1 | ||
Dimensions | |||
|---|---|---|---|
Maximum Drilling Depth | 40.00mm | Bit Diameter (Letter) | J |
Bit Diameter (Inches) | 1/4-in | Shank Size | 1/4-in |
Bit Diameter (Number) | #1 | Bit Length | 75.00mm |
Bit Diameter (mm) | 6.30mm | ||
Features | |||
|---|---|---|---|
Heavy Duty | Yes | Set/Individual | Individual |
Right/Left Hand | Right handed | Tip Geometry | 90-degree split-point |
Compatibility | |||
|---|---|---|---|
Brand/Model Compatibility | KOBALT | ||
Warranty | |||
|---|---|---|---|
Warranty | 1-year limited | ||
Certifications | |||
|---|---|---|---|
CA Residents: Prop 65 Warning(s) | |||
Miscellaneous | |||
|---|---|---|---|
UNSPSC | 27112200 | ||
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise this drill bit for delivering smooth, precise holes in ceramic and porcelain tiles without cracking or chipping. Most report it outperforms standard masonry bits, drilling cleanly through thick materials like Spanish clay and natural stone. Many highlight its speed, with users drilling 12 porcelain holes on a single bit where others failed after three or four. While some note the bit dulls after six to eight holes, most still consider its performance worth the limited lifespan. Reviewers recommend using water to cool the bit and starting with pilot holes to maximize results.
Customer review summary generated by AI, including incentivized reviews.Tile bits
I love this product. I started out with a masonry bit to drill through tile and it was not successful. The specialized tile bits I used was a smaller one to start it and then the larger one to finish up and it did an excellent job.
Verified Purchaser
Fast on tile
Worked great on tile without using the hammer function on the drill. Drilled right where I wanted and didn't move around. Nice clean hole.
Verified Purchaser
Rather use Bosch
Got the job done. Don’t forget to set a punch hole or you’ll wear out these bits fast
Verified Purchaser
Broke in fourth hole
Bought this to drill six holes in builder-quality kitche tile flooring. Kept it lubricated with water and as I was drilling the fourth hole it snapped mid shaft with the snapped portion just below the surface. To say I was pi$$ed it putting it bluntly. No way to get it out and the sliding door brace can't be moved without filling two holes. I ruined a high quality Dewalt bit hoping I could get ahile started and then drive a square file shank into it wiggle it out. It is some kind of hardene...
Good to drill holes on hard ceramic.
Drill bite woks very well , ceramic tile was very hard so to drill hole need patience.
Verified Purchaser
Decently long lasting
This is the longest lasting drill head for porcelain tile out of the brands I’ve tried. I would recommend.
Verified Purchaser
Clean Holes in Natural Stone Tiles
I had to drill eight holes in 9 mm-thick natural stone tiles to install a curved shower curtain rod. I took the advice of others, and I periodically used a spray bottle to ensure that the bit stayed cool. I didn't experience any issues, and I just needed one bit to make quick work of my project.
Goes thru Ceramic Tile Quickly.
I used it to install a grab bar in the shower. Had to drill 3 holes through ceramic tile and into the wall. It did the job, and a lot better and faster than a similar product from a different vendor.
Verified Purchaser
Works like it should, but limited life.
Made the holes I needed in thick porcelain. I don’t think it would have made many more than the 6 I drilled, as it seemed like it was getting dull.
Verified Purchaser
It did the job.
It worked well drilling through ceramic tile. The hole was smooth and the tile did not crack. I used a spray bottle of water to keep it cool during the drilling process.
Verified Purchaser










