--- product_id: 803663308 title: "HARFINGTON 12pcs Cobalt Drill Bits,3.5mm M35 High Speed Steel Metric Twist Drill Bit Straight Shank Jobber Drill Bits for Hard Metal, Stainless Steel, Copper, Aluminum, Cast Iron, Plastic" brand: "harfington" price: "113.10 DT" currency: TND in_stock: true reviews_count: 1 category: "Harfington" url: https://www.desertcart.tn/products/803663308-harfington-12pcs-cobalt-drill-bits-3-5mm-m35-high-speed store_origin: TN region: Tunisia --- # 3.5mm precision cutting diameter 135° quick-cut split point for fast drilling M35 cobalt steel, 5% cobalt for durability HARFINGTON 12pcs Cobalt Drill Bits,3.5mm M35 High Speed Steel Metric Twist Drill Bit Straight Shank Jobber Drill Bits for Hard Metal, Stainless Steel, Copper, Aluminum, Cast Iron, Plastic **Brand:** harfington **Price:** 113.10 DT **Availability:** ✅ In Stock ## Summary > ⚡ Drill Like a Pro, Finish Like a Boss ## Quick Answers - **What is this?** HARFINGTON 12pcs Cobalt Drill Bits,3.5mm M35 High Speed Steel Metric Twist Drill Bit Straight Shank Jobber Drill Bits for Hard Metal, Stainless Steel, Copper, Aluminum, Cast Iron, Plastic by harfington - **How much does it cost?** 113.10 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/803663308-harfington-12pcs-cobalt-drill-bits-3-5mm-m35-high-speed) ## Best For - harfington enthusiasts ## Why This Product - Trusted harfington brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Speed:** 135° quick-cut split point design accelerates drilling while reducing walking and heat buildup. - • **Precision Perfected:** 3.5mm cutting diameter with a straight shank ensures accurate, wobble-free drilling every time. - • **Smooth Chip Ejection:** Fully ground spiral grooves rapidly clear debris, minimizing friction and extending bit life. - • **Unmatched Durability:** Crafted with 5% cobalt-infused M35 high-speed steel for superior wear resistance and longevity. - • **Versatile Powerhouse:** Engineered to tackle hard metals like stainless steel, cast iron, copper, aluminum, and even plastics. ## Overview The HARFINGTON 12pcs Cobalt Drill Bits set features 3.5mm M35 high-speed steel bits with 5% cobalt content, designed for precision and durability. Equipped with a 135° quick-cut split point and fully ground spiral grooves, these bits deliver fast, accurate drilling across hard metals and various materials, making them an essential upgrade for professionals and DIY enthusiasts aiming for flawless results. ## Description 1. The M35 drill bit is made of cobalt high speed steel, contain 5% Cobalt, high hardness, fast cutting speed, improve wear resistance, more durable than ordinary high speed steel drill bit.2. The cobalt drill bit can be used to harden materials. Such as hard metal, stainless steel, copper, aluminum, cast iron, plastic and wood, can also be used for softer materials. Not suitable for glass or ceramic materials.3. 135° Quick-cut split point, round straight shank, prevent walking, make drilling accurate and faster. Fully ground spiral groove design, quickly removes debris, reduces friction and heat, ensures smooth chip movement.4. This series are small drill bits, please note the size before you buy. Suggest speed 100-800r/min. Review: Cuts like butter ## Features - Size - Cutting Diameter: 3.5mm / 0.14-inch, Flute Length: 33mm / 1.3-inch, Shank Diameter: 3.5mm / 0.14-inch, Total Length: 69mm / 2.72-inch - Material - The M35 drill bit is made of cobalt high speed steel, contains 5% Cobalt, high hardness, fast cutting speed, improve wear resistance, more durable than ordinary high speed steel drill bit. - Feature - 135° Quick-cut split point, round straight shank, prevent walking, make drilling accurate and faster. Fully ground spiral groove design, quickly removes debris, reduces friction and heat, ensures smooth chip movement. - Application - The cobalt drill bit can be used to harden materials. Such as hard metal, stainless steel, copper, aluminum, cast iron, plastic and wood, can also be used for softer materials. Not suitable for glass or ceramic materials. - Note - This series are small drill bits, please note the size before you buy. Suggest speed 100-800r/min. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C541VJRQ | | ASIN | B0C541VJRQ | | Batteries Included? | No | | Batteries Required? | No | | Best Sellers Rank | #160,541 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #146 in Jobber Drill Bits | | Customer Reviews | 4.9 4.9 out of 5 stars (10) | | Customer reviews | 4.9 4.9 out of 5 stars (10) | | Date First Available | 17 June 2023 | | Date First Available | 17 June 2023 | | Finish | Aluminum | | Item Weight | 50 g | | Manufacturer | HARFINGTON | | Manufacturer | HARFINGTON | | Manufacturer reference | hta230411hh0721 | | Manufacturer reference | hta230411hh0721 | | Material | Cobalt, High Speed Steel (HSS) | | Package Dimensions | 8 x 4.5 x 2 cm; 50 g | | Package Dimensions | 8 x 4.5 x 2 cm; 50 g | | Part number | hta230411hh0721 | | Size | 3.5mmx69mm | ## Product Details - **Brand:** HARFINGTON - **Finish type:** Aluminum - **Manufacturer:** HARFINGTON - **Material:** Cobalt, High Speed Steel (HSS) ## Images ![HARFINGTON 12pcs Cobalt Drill Bits,3.5mm M35 High Speed Steel Metric Twist Drill Bit Straight Shank Jobber Drill Bits for Hard Metal, Stainless Steel, Copper, Aluminum, Cast Iron, Plastic - Image 1](https://m.media-amazon.com/images/I/71xXV2TO69L.jpg) ![HARFINGTON 12pcs Cobalt Drill Bits,3.5mm M35 High Speed Steel Metric Twist Drill Bit Straight Shank Jobber Drill Bits for Hard Metal, Stainless Steel, Copper, Aluminum, Cast Iron, Plastic - Image 2](https://m.media-amazon.com/images/I/51pdEMcmJ9L.jpg) ![HARFINGTON 12pcs Cobalt Drill Bits,3.5mm M35 High Speed Steel Metric Twist Drill Bit Straight Shank Jobber Drill Bits for Hard Metal, Stainless Steel, Copper, Aluminum, Cast Iron, Plastic - Image 3](https://m.media-amazon.com/images/I/51ViEUGj8hL.jpg) ![HARFINGTON 12pcs Cobalt Drill Bits,3.5mm M35 High Speed Steel Metric Twist Drill Bit Straight Shank Jobber Drill Bits for Hard Metal, Stainless Steel, Copper, Aluminum, Cast Iron, Plastic - Image 4](https://m.media-amazon.com/images/I/61XHDs3Zu3L.jpg) ![HARFINGTON 12pcs Cobalt Drill Bits,3.5mm M35 High Speed Steel Metric Twist Drill Bit Straight Shank Jobber Drill Bits for Hard Metal, Stainless Steel, Copper, Aluminum, Cast Iron, Plastic - Image 5](https://m.media-amazon.com/images/I/71juagjMrIL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by J***S on 1 March 2024* Cuts like butter --- ## 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.tn/products/803663308-harfington-12pcs-cobalt-drill-bits-3-5mm-m35-high-speed](https://www.desertcart.tn/products/803663308-harfington-12pcs-cobalt-drill-bits-3-5mm-m35-high-speed) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-06-07*