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🛠️ Drill smarter, not harder — own the set that means business!
The GMTOOLS 29Pcs Cobalt Drill Bit Set features high-speed steel bits with a corrosion-resistant black and gold oxide finish. Its 135° split point design ensures fast, precise drilling with minimal walking across a wide range of materials including stainless steel, wood, and plastic. The set includes 29 sizes from 1/16" to 1/2" housed in a sturdy metal indexed case for ultimate organization and durability, making it the go-to choice for professionals and DIYers alike.
| ASIN | B0B5TPZX92 |
| Best Sellers Rank | #6,505 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #15 in Jobber Drill Bits |
| Brand Name | GMTOOLS |
| Customer Reviews | 4.4 4.4 out of 5 stars (2,465) |
| Cutting Angle String | 135 Degrees Degrees |
| Cutting Diameter | 0.5 Inches |
| Finish Types | Titanium |
| Manufacturer | GMTOOLS |
| Material Type | Cobalt Steel |
| Number of Flutes | 2 |
| Number of Pieces | 115 |
| Part Number | Cobalt Twist Drill Bit |
| Point Style | Split Point |
| Set Name | 115Pcs Cobalt Drill Bits Set |
| Shank Type | Straight |
| Surface Recommendation | Metal |
| Tool Flute Type | Spiral |
| Unit Count | 1.0 Count |
D**P
Great bits at a fair price.
Sharp and strong in a great case
F**K
Best bits ever made
Best set of bits I have ever owned. Drilled through titanium plated stainless with no effort
M**N
Butter cutter
Works like a champ. Cuts metal like butter!!
A**R
Good bits, poor quality box.
Bit’s are sharp and appear to hold an edge; I have only used two Bits out of the index and both worked well. Index box is thin and deforms easily, latch is not trustworthy. Good bits, poor quality box.
T**T
Great value
Very tough and durable. Drills steel with ease.
R**S
Excellent product.
Worked perfect as advertised.
M**E
Pretty solid an durable
Well i broke one bit, but for the money they're pretty solid considering im going through cold rolled steel thats a 1/4" thick. Also, if youre going through any solid metal such as steel, dip the bits in oil at the tip to help with the heat
N**O
Very damaged box
The bits are pretty decent for the price.. but the box is trash, mine came very damaged…I can’t really use the box, that was pretty disappointing
K**T
So far so good. Broke my original one and bought these. They drill nicely through stainless steel and I've only been using the 1 so far for a bunch of stainless holes.
E**O
Increíblemente buenas, un excelente filo las e probado en aceros tratados y sin problema perforan, recomendado al 100%
L**U
Very impressive with quality of the product. Drilled a lot of holes on the struts for a week already and they’re still very sharp.
C**S
Si es bastante resistente lo uso para barrenos en aluminio.l
J**H
awesome to have a good quality drill bit of all sizes all in one spot.
Trustpilot
1 month ago
2 weeks ago