Bosch (1-Pack) 5 -Piece Assorted Assorted Assorted Assorted x Set Carbide tipped Right handed Glass and Tile Drill Bit Set

Item #6523059 |
Model #PTBX05
Optimized for drilling in hard materials – for fast, precise work in porcelain tile, marble tile, granite tile and more
Up to 5X more life – with carbide tip optimized for ceramic tile (versus Bosch glass and tile drill bits)
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
Universal brand fit – impact-rated hex shank provides compatibility with 1/4” hex impact drill/drivers and 3-jaw chuck drill/drivers
Set contents – five piece set includes (2) 3/16 In, (2) ¼ In, and (1) 5/16 In, diameter bits for use in a variety of applications
General | |||
|---|---|---|---|
Material | Carbide tipped | Shank Type | Hex |
Package Quantity | 5 | ||
Dimensions | |||
|---|---|---|---|
Maximum Drilling Depth | Set | Bit Diameter (Letter) | Assorted |
Bit Diameter (Inches) | Assorted | Shank Size | Set |
Bit Diameter (Number) | Assorted | Bit Length | Set |
Bit Diameter (mm) | Assorted | ||
Features | |||
|---|---|---|---|
Heavy Duty | No | Set/Individual | Set |
Right/Left Hand | Right handed | Tip Geometry | Assorted |
Compatibility | |||
|---|---|---|---|
Brand/Model Compatibility | Bosch | ||
Warranty | |||
|---|---|---|---|
Warranty | None | ||
Certifications | |||
|---|---|---|---|
CA Residents: Prop 65 Warning(s) | No | ||
Miscellaneous | |||
|---|---|---|---|
UNSPSC | 27112200 | ||
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise these drill bits for exceptional performance on hard materials like porcelain, ceramic, and glass without cracking or chipping. Reviewers highlight precision, speed, and reliability, noting they drill faster than competitors and complete multiple holes in seconds. Many appreciate the varied set sizes for versatile home projects and describe the experience as effortless. The carbide tips and arrow-shaped design ensure stability and control. While most report long-lasting durability, some note bits wear faster without water cooling. A small number experienced premature failure, but overall, customers strongly recommend these bits for tile work and delicate surfaces.
Customer review summary generated by AI, including incentivized reviews.Worked after using 2 sizes of bits
I bought this set after using another brand that wouldn’t drill the holes I needed. The 1/4” hole I drilled first took a long time in the porcelain tile I was trying to set some shower doors in. Remember to go slow or the bit burns up. We switched up to the 1/8” bit and it drilled much faster. We added water from a squirt bottle to help w/ heat buildup. I think the point of the 1/8” vs 1/4” was steeper and pierced the porcelain quicker. We switched to the 1/4 for our actual hole. We got i...
Verified Purchaser
Surprisingly good for drilling holes in porcelain
I was very pleasantly surprised at how well these drilled into the porcelain tiles. I drilled maybe 24 holes to mount three grab bars for my parent's house. Originally I was going to buy a diamond hole bit, but the reviewers indicated these were better -- and I must agree. While I did not need a new bit, I was happy that this particular set had two each of the smallest size that I used. I think the bit lasted a long time since I sprayed water on the hole and bit every 10 seconds or so. It got ho...
Verified Purchaser
Tile bits
Used it to drill holes in a tile backsplash for GFCI plate screws. Did what it's advertised to do.
Verified Purchaser
Drill slowly and push hard use water
These drill bits are a life saver for not having to hammer drill for tile they are less likely to crack or break. The bits usually get about six to eight holes before dulling if u dip the bit in water every few seconds to keep them cool they last longer. I was drilling ceramic tiles to install commercial bathroom hardware.
Perfect tile bits
Am I a professional… no. Was I raised with the figure it out attitude…yes. I first tried another $20 diamond edge bit to put a hole in my tile shower to hold an anchor. After what seemed like forever making no progress I went back to the store and bought these. In less than the time it took me to purchase, I had made 4 holes with no chips or cracking of my tile. Definitely important to have the right tool for the job and this was it.
Porcelain bits
I have been looking for quality tile bits that work with porcelain. These are the quality bits I have been looking for. Decently priced and do a great job for my needs. Run on low rpms and a squirt of water and these bits work flawlessly.
Verified Purchaser
Worst Ceramic Drill bits ever
Simply - DO NOT BUY! - Find another brand. Using the 3/16 bit in no time the first one was no longer sharp enough to drill the hole in the 6mm shower tile. The second one, on its second hole the tip broke. As a result I am on my way to a nearer retailer, so Lowes you lost a sale. Bosch I used to sell your products in another country, I doubt these drills are a representation of German engineering that you used to claim. This level would make most Germans blush and then tell me that Bosch no...
Verified Purchaser
Definitely would purchase again. Would recommend
I read a lot of reviews before purchasing these drill bits. I purchased these and they worked great !
Verified Purchaser
Drills Through Ceramic Tiles Like Butter!
I recently had tiles installed throughout my bathroom, and I needed to drill holes for various fixtures. After reading a decent amount about drilling through tiles, I purchased this set of Bosch drill bits. They were easy to use, and made quick work of the holes I needed to drill - they were great!
Nothing
The bits worked perfectly for drilling into stone countertops.
Verified Purchaser








Thank you for taking the time to share your feedback. We’re truly sorry to hear about your experience with the PTBX05 ceramic drill bits and the inco...