BOSCH PTBX05 5 pc. Porcelain Tile Drill Bit Set
$22.91
Price: $22.91
(as of Sep 19, 2025 13:36:58 UTC – Details)
Bosch Porcelain Tile Bits are engineered for fast, accurate, and efficient drilling in hard materials like porcelain and ceramic, marble and granite tiles, and more. The durable carbide tip is optimized for ceramic tile drilling and delivers up to 5X more life than Bosch glass and tile bits when drilling in porcelain tile. An innovative arrow-shaped design allows for faster, easier drilling with less friction, for reduced bit wear and tear, delivering extended life. The bit’s enhanced centering zone delivers easy positioning for more precise drilling. Experience maximum torque transmission and secure connection with the chuck through the impact-rated hex shank.
OPTIMIZED FOR DRILLING IN HARD MATERIALS: For fast, precise work in porcelain tile, marble tile, granite tile and more.
UP TO 5X LONGER LIFE: With carbide tip optimized for ceramic tile. (vs. Bosch glass and tile drill bits)
NO SKATE, ARROW-SHAPED HEAD DESIGN: Delivers faster drilling with less effort for reduced wear and tear on the bit.
ENHANCED CENTERING ZONE: Provides easier, more precise handling.
HEX SHANK: Allows for maximum torque transmission and more secure connection in the chuck.
Customers say
Customers find these drill bits excellent for working with porcelain and marble tiles, with one mentioning they drill through them quickly. The bits receive positive feedback for their quality and performance, with one customer noting they don’t wander during use. However, the material quality receives mixed reviews, with several customers describing it as very bad. The durability of the bits is also mixed, with one customer reporting they only lasted through 5 screws.
Jim Milgroom –
Excellent product
I bought these to drill a tile shower wall in order to mount a grab bar. The bit was excellent. The drilling was fast and made a clean hole. I put a piece of masking tape on the tile in order to mark the drilling location and drilled through it with no bit wandering. I used a portable drill and very little pressure was required. Excellent product.
steve ryan –
Love these tile bits!
These bits are incredible! No drift. Perfect hole. Cuts through tile like butter with no pressure. I worked for an old school tile mason decades ago and I can tell you he would have wished to have these bits.
steven skidmore –
Very durable and went through porcelain tile in seconds
I bought these bits and it drilled through porcelain tile seconds. I bought two just in case because tile is hard to drill into. I didnât need the second one.
Dean Prange –
The best bit?
I queried the internet for the best porcelain/tile bit and was told this one. I have to concur. This is an excellent bit for the job. When drilling through that material you aren’t really drilling or hammering just scraping a hole into it. This bit seems to have that in mind. I’m pleased.
Luis Rojas –
Works great
They work great last longer than other brands
PukSup808 –
Great quality porcelain bits for mounting hardware
Recently used these on a shower remodel to install a heated towel rack and toilet paper roll with great success. I started off with the smallest bit and worked up to my final anchor sizes. The porcelain I was drilling was particularly hard and these handles extremely well. I recommend slowly dripping water on the bits as you drill and having a cup of water to cool the bit in frequently during use. Bosch makes quality tools and these were no exception. They were durable and accurate and a great choice for the price point.My grading scaleMy ratings are based on one or more of the following characteristics. Please note I consider 4 stars a very high rating.* 1 Star – unsatisfactory – poor quality – misleading or false ad copy – would not recommend to anyone* 2 Stars – below expectations, needs improvement – inferior materials And/Or design – poor value* 3 Stars – meets reasonable expectations of quality, design and durability at the price point* 4 Stars – Exceeded expectation – above average performance of materials, design and craftsmanship – good value – would recommend* Five stars – Truly outstanding – exceptional quality and design – exceeded all expectations of materials, design, craftsmanship, durability and value. Would recommend without any reservations5 point rating scale:* 1 – Unsatisfactory* 2 – Needs improvement* 3 – Meets expectations* 4 – Exceeds expectations* 5 – Truly outstanding
Amy Gessmann –
Does t stand up to the job
Horrible quality. Only lasted 5 screws and I trashed it.
ljc –
Worked Great on Marble Tile
I was quite nervous about drilling into marble tile. This drill bit worked great and I was able to hang a lighted mirror on the wall with no issues.
Alex M. –
Best tile bits Iâve ever bought. Stay on track and cut through efficiently.
Amazon Customer –
The diamond head bits worked great. I was able to drill into porcelain tile without cracking it.
Dewei Xu –
Very good purchase.
Justin l. –
Stayed sharp longer but tile buts are usually one tike use .
PMD –
Great bit for drilling into tile