






🛠️ Drill Like a Pro, Last Like a Legend!
The WildBossy Cobalt Drill Bit Set features 10 precision-engineered 4.5mm M35 cobalt steel bits with a 135° split point and gold oxide finish, delivering exceptional hardness (up to 67 Rockwell) and durability. Designed for professional-grade drilling in hard metals like stainless steel and cast iron, this set combines longevity, precision, and portability in a sturdy storage case—perfect for demanding projects and on-site use.



























| ASIN | B0D458C5SX |
| Best Sellers Rank | #52,815 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #36 in Jobber Drill Bits |
| Brand | WildBossy |
| Brand Name | WildBossy |
| Customer Reviews | 4.5 out of 5 stars 599 Reviews |
| Cutting Angle String | 135 Degrees |
| Cutting angle string | 135 Degrees |
| Finish Types | Gold |
| Finish type | Gold |
| Manufacturer | WildBossy |
| Material | Stainless Steel |
| Material Type | Stainless Steel |
| Shank Type | Straight |
| Shank type | Straight |
| Surface Recommendation | Cer, Metal, Stainless Steel, Wood |
| Surface recommendation | Cer, Metal, Stainless Steel, Wood |
R**L
Solid.
solid drill bits.
R**H
Drills through harden steel.
Very good drill bits, drills through harden steel.
K**R
Realy good quality drill bits
I made my mounting rack for my solar panels out of used steal pipe, and I had to drill quite a few holes for mounting these panels. The piping was quite hard and I bought five drill bits, so as to make sure I wouldn't run out. To my surprise the drill bits held up really well and I was able to drill all the holes with just one bit. I did pre-drill the holes with a center drill, but that was all I used, and of course some lubricant. I never thought that I could drill these many holes without wearing out the drill bit. Quite amazing.
R**É
Cobalt bits
Wanted,to have these bits, last longer
G**G
Buen producto.
Buen producto.
Trustpilot
3 weeks ago
3 weeks ago