--- product_id: 139056833 title: "40-Pc M35 Cobalt Twist Drill Bit Set 3/64 to 3/32 for Hard Metal" brand: "hymnorq" price: "€ 30.78" currency: EUR in_stock: true category: "Hymnorq" url: https://www.desertcart.nl/products/139056833-40-pc-m35-cobalt-twist-drill-bit-set-3-64 store_origin: NL region: Netherlands --- # 5% Cobalt heat resistance 40-piece precision assortment 65-67 HRC Rockwell Hardness 40-Pc M35 Cobalt Twist Drill Bit Set 3/64 to 3/32 for Hard Metal **Brand:** hymnorq **Price:** € 30.78 **Availability:** ✅ In Stock ## Summary > ⚡ Drill Like a Pro, Never Miss a Beat! ## Quick Answers - **What is this?** 40-Pc M35 Cobalt Twist Drill Bit Set 3/64 to 3/32 for Hard Metal by hymnorq - **How much does it cost?** € 30.78 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/139056833-40-pc-m35-cobalt-twist-drill-bit-set-3-64) ## Best For - hymnorq enthusiasts ## Why This Product - Trusted hymnorq brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Perfected:** Fully ground bits with dual-flute design for smooth chip ejection and exact drilling. - • **Unmatched Durability:** Premium M35 cobalt steel with 65-67 HRC for relentless wear resistance. - • **Balanced Cutting Power:** 118° chisel point delivers optimal speed and tip strength for versatile use. - • **Versatile & Reliable Fit:** Straight shank with abrasion-resistant bronze finish fits standard chucks and lasts longer. - • **Always Ready, Never Stuck:** 40-piece set with 4 essential sizes ensures zero downtime on your projects. ## Overview The Hymnorq 40-Pc M35 Cobalt Twist Drill Bit Set features premium 5% cobalt high-speed steel with a Rockwell hardness of 65-67 HRC, delivering superior heat resistance and durability. This fully ground, precision-balanced set includes 40 bits across four popular fractional sizes, designed with a 118° chisel point and dual-flute geometry for efficient chip removal. Finished with a bronze coating and straight shanks, these bits excel in drilling hard metals, plastics, and wood, making them an essential toolkit upgrade for professionals and serious DIYers alike. ## Description Hymnorq 40-Pc M35 Cobalt Twist Drill Bit Set 3/64 to 3/32 for Hard Metal | Fully Ground 5% HSS-CO With 118° Point; 65-67 HRC Superior Heat Resistance; Straight Shank; Cuts Cast Iron, Plastics & Wood - desertcart.com ## Features - Premium M35 Cobalt Grade: Constructed from High-Speed Steel containing 5% Cobalt (HSS-CO), these bits boast a Rockwell Hardness of 65-67 HRC. This advanced composition offers superior heat resistance and wear durability compared to standard HSS bits, making them essential for drilling through tough metals like stainless steel, high-carbon steel, and cast iron. - High-Value 40-Piece Assortment: Small drill bits are prone to breaking during precision work. This bulk set includes 40 pieces in the 4 most commonly used fractional sizes: 3/64", 1/16", 5/64", and 3/32" (10 bits per size). You will always have plenty of spares on hand, ensuring your project never stops due to a broken bit. - Fully Ground & Precision Balance: Unlike roll-forged alternatives, our bits are fully ground from solid material. This manufacturing process guarantees precise dimension accuracy, excellent concentricity, and a smooth dual-flute geometry that ejects chips rapidly to prevent overheating and clogging. - Durable 118° Chisel Point: Features a classic 118-degree point angle that balances cutting speed with tip strength. This design is ideal for general-purpose drilling and provides better stability and longevity when working with hand drills or on materials where a sharper point might chip. - Versatile Application: The straight shank design ensures a secure fit in standard drill chucks and collets. Finished with an abrasion-resistant bronze coating, these bits are perfect for DIY repairs, model making, jewelry crafting, and professional maintenance on metal, hard plastics, and wood. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07RKRKMBX | | Best Sellers Rank | #136,484 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #278 in Jobber Drill Bits | | Brand Name | HYMNORQ | | Customer Reviews | 4.4 4.4 out of 5 stars (160) | | Cutting Angle String | 118 degrees | | Cutting Diameter | 3/64, 1/16, 5/64, 3/32 inches | | Finish Types | Bronze | | Included Components | 40 pieces of cobalt drill bits | | Item Highlight | Fully Ground 5% HSS-CO With 118° Point; 65-67 HRC Superior Heat Resistance; Straight Shank; Cuts Cast Iron, Plastics & Wood | | Manufacturer | Hymnorq | | Material Type | Cobalt Steel | | Model | M35 | | Number of Flutes | 2 | | Number of Packs | 1 | | Number of Pieces | 40 | | Part Number | M35 | | Point Style | Split Point | | Set Name | 40pcs inch 4size | | Shank Type | Straight | | Surface Recommendation | Stainless Steel | | Tool Flute Type | Spiral | | UPC | 681413691339 | | Unit Count | 1 Count | ## Product Details - **Cutting Angle String:** 118 degrees - **Cutting Diameter:** 3/64, 1/16, 5/64, 3/32 inches - **Finish Type:** Bronze - **Material:** Cobalt Steel - **Shank Type:** Straight ## Images ![40-Pc M35 Cobalt Twist Drill Bit Set 3/64 to 3/32 for Hard Metal - Image 1](https://m.media-amazon.com/images/I/51rDMR-JLVL.jpg) ![40-Pc M35 Cobalt Twist Drill Bit Set 3/64 to 3/32 for Hard Metal - Image 2](https://m.media-amazon.com/images/I/41Nc1-DTsmL.jpg) ![40-Pc M35 Cobalt Twist Drill Bit Set 3/64 to 3/32 for Hard Metal - Image 3](https://m.media-amazon.com/images/I/41XEH0JGpwL.jpg) ![40-Pc M35 Cobalt Twist Drill Bit Set 3/64 to 3/32 for Hard Metal - Image 4](https://m.media-amazon.com/images/I/41oskWuDvXL.jpg) ![40-Pc M35 Cobalt Twist Drill Bit Set 3/64 to 3/32 for Hard Metal - Image 5](https://m.media-amazon.com/images/I/51D-5dNjujL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: Are most of these reviews fake? 50 real cobalt bits for $15 is impossible.** A: We swear every review in our store is real. Our living relies on this account. We'll never risk making fake reviews, or it might be closed by Amazon. Pay attention to the size. These bits are small. The 1mm is like a needle. You guys paid extra too much for those famous brands before. Selling it at $15 is profitable for us. **Q: is the drill bits pure cobalt?** A: Thanks for your question. Cobalt drill bits are not made of pure cobalt, but rather a steel alloy with 5 to 8 percent cobalt. The 5-percent alloy is known as M35 grade, and the 8-percent alloy is M42. These bits are made of M35 grade cobalt steel, with 5% cobalt added. **Q: I want to drill 9 to 12 holes through large, stainless steel hinges (3mm thick).Could I do the job with these drills?** A: Quality of hinge is the variable here. I would buy a single cheap coated drill bit first. If you can drill one hole with the cheap bit, then you should be able to drill 9-12 in the same material with this set. As always use cutting oil and make sure your press is set to proper speed. **Q: What size is the shank on these?** A: Size of the shank is the same as the size of the drill. --- ## 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.nl/products/139056833-40-pc-m35-cobalt-twist-drill-bit-set-3-64](https://www.desertcart.nl/products/139056833-40-pc-m35-cobalt-twist-drill-bit-set-3-64) --- *Product available on Desertcart Netherlands* *Store origin: NL* *Last updated: 2026-09-23*