--- product_id: 453250798 title: "8.5mm Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bit of 1pcs with Straight Shank to Cut Through Hard Metals Such as Stainless Steel and Cast Iron, 5% Cobalt M35 Grade HSS-CO" brand: "linggan" price: "441136₫" currency: VND in_stock: true reviews_count: 9 url: https://www.desertcart.vn/products/453250798-8-5mm-metric-m35-cobalt-steel-extremely-heat-resistant-twist store_origin: VN region: Vietnam --- # Heat Resistant - Titanium Coating for Cooler Drilling 135° Point Angle - Precision & Stability M35 Cobalt Steel - Rockwell Hardness 65 8.5mm Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bit of 1pcs with Straight Shank to Cut Through Hard Metals Such as Stainless Steel and Cast Iron, 5% Cobalt M35 Grade HSS-CO **Brand:** linggan **Price:** 441136₫ **Availability:** ✅ In Stock ## Summary > 🔧 Drill Like a Pro, Last Like a Legend! ## Quick Answers - **What is this?** 8.5mm Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bit of 1pcs 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?** 441136₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/453250798-8-5mm-metric-m35-cobalt-steel-extremely-heat-resistant-twist) ## 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 - • **Metal Mastery:** Engineered to slice through tough metals like stainless steel and cast iron with ease. - • **Unmatched Durability:** M35 5% cobalt alloy delivers up to 10x longer life than standard HSS bits. - • **Cool & Precise Cutting:** Titanium coating and 2-flute design reduce friction and heat for faster, cleaner holes. - • **Effortless Chip Removal:** Spiral flutes and staggered teeth clear debris efficiently, minimizing chatter. - • **Universal Compatibility:** Straight shank fits standard drill chucks for secure, accurate drilling every time. ## Overview This 8.5mm M35 cobalt steel drill bit features a hardened 5% cobalt alloy with titanium coating, delivering exceptional heat resistance and durability. Its 135° point angle and dual-flute spiral design ensure precise, chatter-free drilling through hard metals such as stainless steel and cast iron, making it an essential tool for professionals demanding longevity and performance. ## Description Full description not available ## 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 | |---------------|-------| | Material | M35 Cobalt High Speed Steel | | Cutting Diameter | 8.5 Millimeters | | Finish Type | Titanium | | Shank Type | Straight | | Cutting Angle String | 135 Degrees | | Brand | LingGan | | Item dimensions L x W x H | 4.61 x 0.33 x 0.33 inches | | Tool Flute Type | Spiral | | Point Style | Taper Point | | Surface Recommendation | Stainless Steel,Cast Iron,Steel,Metals | | Number of Flutes | 2 | | Set Name | No Set | | Unit Count | 1 Count | | Manufacturer | LingGan | | Part Number | 2020-11-21-15-75 | | Item Weight | 1.41 ounces | | Product Dimensions | 4.61 x 0.33 x 0.33 inches | | Item model number | 2020-11-21-15-75 | | Size | 8.5 mm (1 Count) | | Finish | Titanium | | Pattern | Spiral | | Batteries Included? | No | | Batteries Required? | No | ## Product Details - **Material:** M35 Cobalt High Speed Steel - **Cutting Diameter:** 8.5 Millimeters - **Finish Type:** Titanium - **Shank Type:** Straight - **Cutting Angle String:** 135 Degrees ## Images ![8.5mm Metric M35 Cobalt Steel Extremely Heat Resistant Twist Drill Bit of 1pcs 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/511Il9mmnmL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐ Drills well in metal. Accurate sizing. *by D***N on Reviewed in the United States on April 24, 2021* I needed to install a roof rack on my truck which required drilling 12 holes in the roof. Once I got started, I discovered that I had to drill through 2 layers to get the appropriate depth, not just one. But this drill bit went through the second layer just easily as the first. I ended up with 12 very clean holes. They were perfectly sized, as the inserts I was using went in nice and snug.If you're needing to drill for a GM truck roof rack, the this is the correct size drill bit for the Rivnut inserts. My roof rack is holding very well, because this drill bit made the right size holes for it. ### ⭐⭐⭐⭐⭐ Drills correct diameter and round hole. *by D***H on Reviewed in the United States on March 18, 2021* I used it for drilling brass. I drill an accurate diameter hole. It has a reasonable finish. I can add no other comments as it has not been used long enough to evaluate it. ### ⭐⭐⭐⭐⭐ Not 1/2” shank *by J***N on Reviewed in the United States on January 28, 2022* Just a warning that this bit will not fit your 1/2” drill. My mistake so I didn’t ding on the rating. I didn’t send back since it was my dumb mistake. --- ## 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.vn/products/453250798-8-5mm-metric-m35-cobalt-steel-extremely-heat-resistant-twist](https://www.desertcart.vn/products/453250798-8-5mm-metric-m35-cobalt-steel-extremely-heat-resistant-twist) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-23*