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⚡ Drill like a pro, last like a legend.
The Bosch CO21 21-piece cobalt metal drill bit set offers professional-grade durability and precision with 4X longer life, a no-skate split-point tip, and a three-flat shank design for slip resistance. Engineered for high-temperature drilling in stainless steel, cast iron, and other tough materials, this versatile set includes laser-etched sizes for easy identification, making it the ultimate choice for demanding drilling applications.

| ASIN | B06XY7W87H |
| Best Sellers Rank | #8,915 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #21 in Jobber Drill Bits |
| Brand | Bosch |
| Brand Name | Bosch |
| Customer Reviews | 4.7 out of 5 stars 8,065 Reviews |
| Cutting Angle String | 135 Degrees |
| Cutting Diameter | 0.5 Inches |
| Finish Type | Titanium |
| Finish Types | Titanium |
| Global Trade Identification Number | 00000346471540 |
| Included Components | Bit Sizes: (2) 1/16", (2) 5/64", (1) 3/32", (1) 7/64", (2) 1/8", (1) 9/64", (1) 5/32", (1) 11/64", (2) 3/16", (1) 13/64", (1) 7/32", (1) 15/64", (2) 1/4", (1) 5/16", (1) 3/8", (1) 1/2" |
| Item Dimensions | 4.6 x 9 x 1.5 inches |
| Item Type Name | CO21 Cobalt Metal Drill Bit Set (21 Piece) |
| Item Weight | 1.1 Pounds |
| Manufacturer | Bosch |
| Material | Stainless Steel |
| Material Type | Stainless Steel |
| Model | CO21 |
| Number of Flutes | 2 |
| Number of Pieces | 21 |
| Part Number | CO21 |
| Point Style | Split Point |
| Set Name | 21-Piece Assorted Set |
| Shank Type | 3-Flat |
| Surface Recommendation | Cast Iron,Metal,Plastic,Stainless,Stainless Steel,Steel,Wood |
| Tool Flute Type | Spiral |
| UPC | 000346471540 |
| Unit Count | 1.0 Count |
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