--- product_id: 206579451 title: "CO14B 14-Piece Assorted Set with Included Case Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum" brand: "bosch" price: "HK$1000" currency: HKD in_stock: true reviews_count: 12 category: "Bosch" url: https://www.desertcart.hk/products/206579451-co14b-14-piece-assorted-set-with-included-case-cobalt-m42 store_origin: HK region: Hong Kong --- # High heat resistance for tough metals 10x longer life with M42 Cobalt alloy Thick web-helix for extra stability CO14B 14-Piece Assorted Set with Included Case Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum **Brand:** bosch **Price:** HK$1000 **Availability:** ✅ In Stock ## Summary > 🛠️ Drill Like a Pro, Last Like a Legend! ## Quick Answers - **What is this?** CO14B 14-Piece Assorted Set with Included Case Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum by bosch - **How much does it cost?** HK$1000 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/206579451-co14b-14-piece-assorted-set-with-included-case-cobalt-m42) ## 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 - • **Stable & Efficient:** Thick web-helix design boosts stability and speeds up material removal in tough applications. - • **Unmatched Durability:** Engineered with 8% cobalt M42 alloy for 10x longer lifespan than standard bits. - • **Complete Professional Kit:** 14 assorted sizes in a sleek case, ready to tackle any metal drilling challenge. - • **Heat-Resistant Powerhouse:** Withstands extreme temperatures, perfect for stainless steel, titanium, and cast iron drilling. - • **Precision Start Every Time:** No-skate split point tip ensures fast, accurate drilling without wandering. ## Overview The BOSCH CO14B 14-Piece Cobalt M42 Drill Bit Set features premium 8% cobalt alloy bits that deliver 10x longer life and superior heat resistance. Designed for precision and durability, these bits excel in drilling stainless steel, titanium, cast iron, and light metals. The set includes 14 versatile sizes housed in a durable case, making it the ultimate choice for professionals demanding reliability and performance. ## Description From the manufacturer Hard-Core M42 Alloy Cobalt Drill Bits Bosch Cobalt M42 Metal Drill Bits are engineered with an upgraded M42 alloy, containing 8% cobalt. These hard-core cobalt bits deliver 10X life vs. standard bits and are designed for high heat resistance. Superior Performance Designed for durability and with high heat resistance for use in stainless steel, cast iron, titanium, light-gauge metal and aluminium. No-Skate Tip Fast, accurate starts reduce bit walking on material surface. M42 Grade Cobalt 10X longer life than standard Cobalt drill bits. Thick Web-Helix Design Fast material removal and increased stability. Review: Great Qaulity - Excellent much better than the basic ones Review: well worth paying a bit more for quality - Normally use cheap drill bits but all the ones I had really struggled when drilling out a bolt. These ones made my life so much easier and saved me a lot of time. Always use a bit of cutting oil/spray when drilling metal and these are still sharp after use and hardly a scratch on them. ## Features - Cobalt M42 drill bit – provides upgraded M42 Cobalt jobber-length bits designed for durability, high heat resistance and Hardened surface for stainless steel, cast iron, titanium, light-gauge metal and aluminum - Enhanced M42 alloy material – contains 8% Cobalt alloy that delivers 10x life vs. Standard bits - High-heat resistant bits – withstand high-temperature applications for extended periods of time - Thick web-helix design – provides additional stability in tough applications - Surface-hardened tip – penetrates tough abrasive materials.Includes – 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8", 1/2" ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07Q9HNTBH | | Best Sellers Rank | 82,736 in DIY & Tools ( See Top 100 in DIY & Tools ) 673 in Drill Bit Sets | | Brand | Bosch | | Country Of Origin | China | | Customer Reviews | 4.6 out of 5 stars 6,879 Reviews | | Cutting Angle String | 135 Degrees | | Cutting Diameter | 7.94 Millimetres | | Cutting angle string | 135 Degrees | | Cutting diameter | 7.94 Millimetres | | Finish Types | Titanium | | Finish type | Titanium | | Global Trade Identification Number | 00000346594591 | | Included Components | 14 Drill Bits; Case | | Item Dimensions | 18.3 x 14.2 x 4.6 centimetres | | Item Type Name | Bosch CO14B 14 pc. Cobalt M42 Drill Bit Set | | Item Weight | 454 g | | Manufacturer | BOSCH | | Manufacturer Part Number | CO14B | | Material | Cobalt | | Minimum Bore Diameter | 0.06 Inches | | Model Number | CO14B | | Number of Flutes | 3 | | Number of Pieces | 14 | | Point Style | Split Point | | Set Name | 14-Piece Cobalt M42 Metal Drill Bit Set | | Shank Type | Straight | | Shank type | Straight | | Surface Recommendation | Metal | | Tool Flute Type | Spiral | | UPC | 000346594591 | | Unit Count | 14.0 count | ## Product Details - **Cutting angle string:** 135 Degrees - **Cutting diameter:** 7.94 Millimetres - **Finish type:** Titanium - **Material:** Cobalt - **Shank type:** Straight ## Images ![CO14B 14-Piece Assorted Set with Included Case Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum - Image 1](https://m.media-amazon.com/images/I/81Nu8e18JaL.jpg) ![CO14B 14-Piece Assorted Set with Included Case Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum - Image 2](https://m.media-amazon.com/images/I/81y3DiSMSWL.jpg) ![CO14B 14-Piece Assorted Set with Included Case Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum - Image 3](https://m.media-amazon.com/images/I/511EGCQiKlL.jpg) ![CO14B 14-Piece Assorted Set with Included Case Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum - Image 4](https://m.media-amazon.com/images/I/71IV2tYa5lL.jpg) ![CO14B 14-Piece Assorted Set with Included Case Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum - Image 5](https://m.media-amazon.com/images/I/81rJQMBWEnL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Length of the bits for each diameter?** A: "Hi there, please see the following model with diameter and length size of the bits that comes in CO14B; CO2131 - 1/16"" - 1.875"" CO2132 - 5/64"" - 2.0"" CO2133 - 3/32"" - 2.5"" CO2134 - 7/64"" - 2.625"" CO2135 - 1/8"" - 2.75"" CO2136 - 9/64"" - 2.875"" CO2137 - 5/32"" - 3.125"" CO2139B - 3/16"" - 3.5"" CO4141 - 7/32"" - 3.75"" CO2145 - 1/4"" - 4.5"" CO2147 - 5/16"" - 4.5"" CO2151 - 3/8"" - 5.0"" CO2159 1/2"" - 6.0"" For further assistance, contact us at 1-877-BOSCH99 (1-877-267-2499) from Mon-Fri 7A-7P CST." **Q: Where is the 5/64" individual bit? (The only one I need to replace, of course!)** A: You always have to order any single bit or bit replacement separately, unless you can convince the company otherwise. **Q: Does Bosch make a metric set????** A: This COB14B Drill bit set is at a standard or imperial measurement. For further assistance, contact us at 1-877-BOSCH99 (1-877-267-2499) from Mon-Fri 7A-7P CST. **Q: Do either of the sets come with a bit holder? If not, what size bit holder would work?** A: The CO14B set doesn't come with a bit holder. The bits will work with drills that caters straight shank bits and three-flat shank bits. For further assistance, contact us at 1-877-BOSCH99 (1-877-267-2499) from Mon-Fri 7AM-7PM CST. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great Qaulity *by S***N on 11 June 2026* Excellent much better than the basic ones ### ⭐⭐⭐⭐⭐ well worth paying a bit more for quality *by G***N on 6 May 2025* Normally use cheap drill bits but all the ones I had really struggled when drilling out a bolt. These ones made my life so much easier and saved me a lot of time. Always use a bit of cutting oil/spray when drilling metal and these are still sharp after use and hardly a scratch on them. ### ⭐⭐⭐⭐⭐ very good service *by E***H on 18 November 2025* top class ## Frequently Bought Together - BOSCH CO14B 14-Piece Assorted Set with Included Case - Cobalt M42 Metal Drill Bits with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, and Light-Gauge Metal - Tap Magic 30004P ProTap Cutting Fluid, 4 oz. Size - Lubri-Cut Cutting Paste for Drilling Metal - 2 Oz Tub - Made in USA | Beeswax Oil for Metal | High Performance Tapping & Cutting Wax | Saw Blade Lubricant & Drill Fluid --- ## 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.hk/products/206579451-co14b-14-piece-assorted-set-with-included-case-cobalt-m42](https://www.desertcart.hk/products/206579451-co14b-14-piece-assorted-set-with-included-case-cobalt-m42) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-08-05*