--- product_id: 312871197 title: "5mm Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bit of 2pcs with Straight Shank to Cut Through Hard Metals Such as Stainless Steel and Cast Iron, 5% Cobalt M35 Grade HSS-CO" brand: "linggan" price: "129 DH" currency: MAD in_stock: true reviews_count: 13 category: "Ling Gan" url: https://www.desertcart.ma/products/312871197-5mm-metric-m35-cobalt-steel-extremely-heat-resistant-twist-drill store_origin: MA region: Morocco --- # Heat Resistant - up to Rockwell 65 hardness for cooler drilling 135° Point Angle - precise centering & reduced wobble M35 Cobalt Steel - 5% cobalt for extreme hardness 5mm Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bit of 2pcs with Straight Shank to Cut Through Hard Metals Such as Stainless Steel and Cast Iron, 5% Cobalt M35 Grade HSS-CO **Brand:** linggan **Price:** 129 DH **Availability:** ✅ In Stock ## Summary > 🔥 Drill Like a Pro, Last Like a Legend ⚙️ ## Quick Answers - **What is this?** 5mm Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bit of 2pcs with Straight Shank to Cut Through Hard Metals Such as Stainless Steel and Cast Iron, 5% Cobalt M35 Grade HSS-CO by linggan - **How much does it cost?** 129 DH with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ma](https://www.desertcart.ma/products/312871197-5mm-metric-m35-cobalt-steel-extremely-heat-resistant-twist-drill) ## Best For - linggan enthusiasts ## Why This Product - Trusted linggan brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Perfect:** 135° tapered point and straight shank ensure accurate, wobble-free holes every time. - • **Titanium Toughness:** HSS base with titanium coating for enhanced edge sharpness and lasting performance. - • **Unmatched Durability:** M35 cobalt alloy delivers up to 10x longer life than standard HSS bits. - • **Versatile Metal Mastery:** Engineered to cut through tough metals like stainless steel and cast iron with ease. - • **Cool & Efficient Drilling:** 2-flute design clears debris fast, reducing friction and heat buildup. ## Overview This 2-piece set of 5mm M35 cobalt steel drill bits combines 5% cobalt alloy with titanium coating to achieve Rockwell hardness up to 65, enabling faster, cooler, and more precise drilling through hard metals such as stainless steel and cast iron. Featuring a 135° point angle and 2-flute design, these bits reduce wobble and efficiently clear debris, making them ideal for professional-grade metalworking tasks. ## Description 5mm Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bit of 2pcs with Straight Shank to Cut Through Hard Metals Such as Stainless Steel and Cast Iron, 5% Cobalt M35 Grade HSS-CO - desertcart.com Review: Great Drill Bits! - Cobalt drill bit worked great with tapping fluid. Used for boring 6061-T6 forged aluminum. Made sure to re-apply tapping fluid when feeling slight friction before continuing. Also used it for tapping 5mm threads in the same 4.2mm drilled hole as recommended for best clearance. Thought I wanted a hex shank but the round shank is better for less wobble and precise concentric drilling since i used a hand held drill. Worked like a charm! Review: Great bits - Great bits very sharp ## Features - Cobalt Steel - Manufactured From M35 5% Cobalt Steel, With Molybdenum And Cobalt Added To Creates A Hardened Alloy, Measuring Rockwell Hardness Up To 65, For Much Faster Cutting And Extra Longer Life Span, With Up To 10 Times When Compared with an Average HSS Drill Bit. - HSS Titanium Coating - Classic HSS Construction With Titanium Coating For Capability And Durability. The Cutting Edge Is Hardened And Honed For Sharpness. - Flutes Form - 2 Flutes Form Helps Clear Chips And Debris Away From The Bit, Decreasing Friction And Heat For A Faster, Cooler Drilling Process, Chatter-Free Design With Staggered Cutting Teeth Ensure The Precise Countersinking And Hole Smooth Clean. - Straight Shank And 135° Point Angle - Straight Shank For Standard Drill Chucks And Collet Chuck To Hold Firmly, Assuring Accurate Centering; Helical Flute For Swarf To Easily Get Out; Ideal For General Purpose Drilling Applications. - For Metalworking - Particularly Successful In Cutting Through Hard Metals(Hardness Less Than Hrc38°) Such As Stainless Steel And Cast Iron, Although They Can Be Used For Softer Materials Like Copper And Aluminium, Too. Not For Hardened Steel And High Carbon Steel. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08P6V4376 | | Best Sellers Rank | #1,565 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Metalworking & Multipurpose Drill Sets | | Brand | LingGan | | Brand Name | LingGan | | Customer Reviews | 4.4 out of 5 stars 1,397 Reviews | | Cutting Angle String | 135 degrees | | Cutting Diameter | 5 millimeters | | Finish Type | Titanium | | Finish Types | Titanium | | Item Dimensions | 3.39 x 0.2 x 0.2 inches | | Item Weight | 0.02 kg | | Manufacturer | LingGan | | Material | M35 Cobalt High Speed Steel | | Material Type | M35 Cobalt High Speed Steel | | Minimum Bore Diameter | 5 millimeters | | Model | 20-20-11-27-12-55 | | Number of Flutes | 2 | | Number of Packs | 2 | | Number of Pieces | 2 | | Part Number | 20-20-11-27-12-55 | | Point Style | Taper Point | | Set Name | 2-Piece Set | | Shank Type | Straight | | Surface Recommendation | Stainless Steel,Cast Iron,Steel,Metals | | Tool Flute Type | Spiral | | Unit Count | 1 Count | ## Product Details - **Cutting Angle String:** 135 Degrees - **Cutting Diameter:** 5 Millimeters - **Finish Type:** Titanium - **Material:** M35 Cobalt High Speed Steel - **Shank Type:** Straight ## Images ![5mm Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bit of 2pcs with Straight Shank to Cut Through Hard Metals Such as Stainless Steel and Cast Iron, 5% Cobalt M35 Grade HSS-CO - Image 1](https://m.media-amazon.com/images/I/51x7IwFPghL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Does this fit a 1/2” drill?** A: I don't quite understand what you mean. Do you need a 1 / 2 inch M35 cobalt drill? Yes, we have 12.7mm, which is 1 / 2 inch in English. **Q: is this good for 10mm rivet nuts?** A: I do not think so...since 10M rivet nuts have an od larger than the 10M screw it will facilitate. Here is how I know i.e. 1,2,3,4,5,6,7,8,9,10...etc. 10 is higher (larger diameter) than 8.9mm. You can search for a chart that will help you determine the size bit you need. It will be in the neighborhood of12mm I expect. Be sure to get someone to help you drill the holes if you can't hold the drill plumb. **Q: Confused by your size chart. Is the dia. of your 10.5 bit 10.5 or 9.6-10.5?** A: Not sure what chart indicated 9.6-10.5 mm. The bit shown in the listing should cut a hole of 10.5 mm with little error. What gets confusing for some is when a drilled hole is to be threaded (tapped). A smaller hole is needed and requires a smaller drill bit size than the bolt size/thread that must screw into the threaded hole. Hope I did not confuse you more. **Q: What is the length, how deep will it drill?** A: Total length 117mm, blade length 75mm ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great Drill Bits! *by A***A on April 28, 2026* Cobalt drill bit worked great with tapping fluid. Used for boring 6061-T6 forged aluminum. Made sure to re-apply tapping fluid when feeling slight friction before continuing. Also used it for tapping 5mm threads in the same 4.2mm drilled hole as recommended for best clearance. Thought I wanted a hex shank but the round shank is better for less wobble and precise concentric drilling since i used a hand held drill. Worked like a charm! ### ⭐⭐⭐⭐⭐ Great bits *by W***T on July 13, 2026* Great bits very sharp ### ⭐⭐⭐⭐⭐ Perfect for the job *by R***B on June 15, 2026* Cut through steel and aluminum EZ PZ. I used it for cutting holes in my trunk to mount a spoiler on my sports car. Worked great! ## Frequently Bought Together - 5mm Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bit of 2pcs with Straight Shank to Cut Through Hard Metals Such as Stainless Steel and Cast Iron, 5% Cobalt M35 Grade HSS-CO - uxcell 2pcs Straight Shank Twist Drill Bits 6mm Gold Titanium & Black Nitride Coated High Speed Steel (HSS) 4341 with 6mm Shank for Stainless Steel Alloy Metal Plastic Wood --- ## 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.ma/products/312871197-5mm-metric-m35-cobalt-steel-extremely-heat-resistant-twist-drill](https://www.desertcart.ma/products/312871197-5mm-metric-m35-cobalt-steel-extremely-heat-resistant-twist-drill) --- *Product available on Desertcart Morocco* *Store origin: MA* *Last updated: 2026-08-18*