--- product_id: 7968406 title: "CO2148 21/64 in. x 4-5/8 in. Cobalt Drill Bit" brand: "bosch" price: "€ 19.87" currency: EUR in_stock: true reviews_count: 13 category: "Bosch" url: https://www.desertcart.it/products/7968406-co2148-21-64-in-x-4-5-8-in-cobalt store_origin: IT region: Italy --- # Split point for no-walk precision Withstands up to 1100°F heat Thick web design for ultimate stability CO2148 21/64 in. x 4-5/8 in. Cobalt Drill Bit **Brand:** bosch **Price:** € 19.87 **Availability:** ✅ In Stock ## Summary > ⚙️ Drill Like a Pro, Last Like a Legend ## Quick Answers - **What is this?** CO2148 21/64 in. x 4-5/8 in. Cobalt Drill Bit by bosch - **How much does it cost?** € 19.87 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/7968406-co2148-21-64-in-x-4-5-8-in-cobalt) ## Best For - bosch enthusiasts ## Why This Product - Trusted bosch brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Unmatched Stability:** Rigid, thick web design ensures maximum bit durability and precision in demanding applications. - • **Versatile Metal Master:** Engineered for light-gauge metal, stainless steel, titanium, cast iron, and more—your go-to for hard materials. - • **Jobber Length Full Shank:** Optimized length and full shank design for compatibility and control across your toughest projects. - • **Heat-Resistant Powerhouse:** Drill through the toughest metals without overheating, sustaining performance up to 1100°F. - • **Precision Start Every Time:** Split point tip eliminates walking and skating, so you hit the mark on the first try. ## Overview The Bosch CO2148 21/64 in. cobalt drill bit is engineered for professionals tackling hard metals. Featuring a heat-resistant cobalt build that withstands temperatures up to 1100°F, a thick web design for enhanced stability, and a split point tip for precise starts, this jobber-length bit excels in drilling stainless steel, titanium, cast iron, and more. Trusted for durability and precision, it’s a must-have for any serious toolkit. ## Description Product Description Bosch cobalt drill bits are specially designed for drilling in hard steel. Thick web helix delivers fast material removal combined with increased durability for maximum efficiency and performance. Each bit is manufactured to exacting specifications and features a split point that starts on contact with no walking or skating, eliminating the need for a center punch. From the Manufacturer Bosch cobalt drill bits offer the best heat resistance and rigid thick web design for drilling in extremely hard and abrasive materials such as treated stainless steel (precipitation-hardened), cast iron and titanium. Review: Great product at a great price ! - Great for hard metals, excellent product. Review: German Quality - Superior to Milwaukee, used to drill stainless first bit lasted 8 holes. Milwaukee was trash over 2 ## Features - WITHSTANDS HIGH-TEMPERATURE APPLICATIONS FOR EXTENDED PERIODS OF TIME (UP TO 1,100F) - RIGID, THICK WEB DESIGN ADDS STABILITY TO BIT IN TOUGH APPLICATIONS - SURFACE HARDENED TO PENETRATE TOUGH ABRASIVE MATERIALS - AVAILABLE IN JOBBER LENGTH, FULL SHANK - BEST USED FOR DRILLING INTO LIGHT-GAUGE METAL, HIGH-CARBON STEEL, ALUMINUM AND ALLY STEEL, CAST IRON, STAINLESS STEEL AND TITANIUM ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000AEQQX6 | | Best Sellers Rank | #43,677 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #17 in Long Length Drill Bits | | Brand Name | Bosch | | Customer Reviews | 4.7 4.7 out of 5 stars (8,017) | | Cutting Angle String | 135 Degrees | | Cutting Diameter | 8.33 Millimeters | | Finish Types | Titanium | | Global Trade Identification Number | 00000346333602 | | Included Components | 1 Bit | | Item Type Name | 21/64" COBALT SP JOBBER DRILL BIT (CARDED) | | Manufacturer | Bosch | | Material Type | Cobalt | | Minimum Bore Diameter | 0.06 Inches | | Model | CO2148 | | Number of Flutes | 1 | | Point Style | Split Point | | Shank Type | 3-Flat | | Surface Recommendation | Metal | | Tool Flute Type | Spiral | | UPC | 000346333602 | | Unit Count | 1.0 Count | | Warranty Description | No | ## Product Details - **Cutting Angle String:** 135 Degrees - **Cutting Diameter:** 8.33 Millimeters - **Finish Type:** Titanium - **Material:** Cobalt - **Shank Type:** 3-Flat ## Images ![CO2148 21/64 in. x 4-5/8 in. Cobalt Drill Bit - Image 1](https://m.media-amazon.com/images/I/31ZFTBsKf4L.jpg) ## Available Options This product comes in different **Size, Number Of Items** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great product at a great price ! *by W***M on August 28, 2025* Great for hard metals, excellent product. ### ⭐⭐⭐⭐⭐ German Quality *by J***D on October 5, 2025* Superior to Milwaukee, used to drill stainless first bit lasted 8 holes. Milwaukee was trash over 2 ### ⭐⭐⭐⭐⭐ Works great *by S***R on December 15, 2025* Works great ## Frequently Bought Together - BOSCH CO2148 1-Piece 21/64 In. x 4-5/8 In. Cobalt Metal Drill Bit for Drilling Applications in Light-Gauge Metal, High-Carbon Steel, Aluminum and Ally Steel, Cast Iron, Stainless Steel, Titanium - Heli-Coil 5546-8 M8 x 1.25 Metric Coarse Thread Repair Kit --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.it/products/7968406-co2148-21-64-in-x-4-5-8-in-cobalt](https://www.desertcart.it/products/7968406-co2148-21-64-in-x-4-5-8-in-cobalt) --- *Product available on Desertcart Italy* *Store origin: IT* *Last updated: 2026-05-08*