






🛠️ Drill Like a Pro, Last Like a Legend
The B BOSI TOOLS 19-piece Cobalt Drill Set features high-grade M35 cobalt steel with 68-70 HRC hardness, delivering exceptional heat and wear resistance. Its 135° split point tip guarantees precise, self-centering drilling across a wide range of materials including hardened metals and wood. Enhanced by a double relief and full grinding process, these bits reduce friction and heat buildup for cooler, faster performance. Packaged in a durable metal case with an ergonomic tilting rack, this set is designed for professionals and enthusiasts who demand reliability, versatility, and organization in one sleek kit.







| ASIN | B0BQXM2N41 |
| ASIN | B0BQXM2N41 |
| Batteries Included? | No |
| Batteries Required? | No |
| Customer Reviews | 4.5 4.5 out of 5 stars (38) |
| Customer reviews | 4.5 4.5 out of 5 stars (38) |
| Date First Available | 9 March 2023 |
| Date First Available | 9 March 2023 |
| Finish | Uncoated |
| Included components | Cobalt diamond set 19 pieces |
| Item Weight | 654 g |
| Item model number | BS532519 |
| Item model number | BS532519 |
| Manufacturer | B BOSI TOOLS |
| Manufacturer | B BOSI TOOLS |
| Material | Stainless Steel Cobalt Steel Cobalt High Speed Steel |
| Package Dimensions | 16.2 x 11.7 x 4.1 cm; 654 g |
| Package Dimensions | 16.2 x 11.7 x 4.1 cm; 654 g |
| Part number | BS532519 |
| Size | 10mm |
G**Y
I'm really happy with this drill bit set. Right out of the box, I was impressed with the quality, especially for the price point. First off, the storage case is excellent. It's solid metal, not a cheap plastic clamshell that's going to crack or have the hinge break after a few uses. Inside, the bits are held in a convenient tilting rack that makes it easy to see the sizes and grab the one you need. It's a well-thought-out design. The bits themselves look and feel very well-made. They have a good weight to them and a clean finish. Most importantly, they perform great. I've used a few of the sizes so far on some steel and hardwood, and they cut cleanly and efficiently. The 135-degree split point tip does its job well—the bit starts cutting right away without wandering or walking. Overall, this is a fantastic set. You get a great range of common metric sizes, sharp bits that cut true, and a durable case to keep them all organized. Highly recommended.
Q**6
These metric drill bits are good quality & work well.
D**R
The drill bits a pretty good for the price but the case is awful. It jams and the holes don’t line up great so I’m always fighting to get the bits in and out of the case
S**K
Surprisingly amazing drill bits, cut stainless steel real fast.
P**0
these drill bit are in use in my shop now little over price
Trustpilot
3 weeks ago
1 month ago