--- product_id: 509326611 title: "Imperial M35 5% Cobalt Drill Bits Set (1/16-1/2 Inch,17PCS) for Hard Metal and Stainless Steel" brand: "stroton" price: "฿4916" currency: THB in_stock: true reviews_count: 5 category: "Stroton" url: https://www.desertcart.co.th/products/509326611-imperial-m35-5-cobalt-drill-bits-set-1-16-1 store_origin: TH region: Thailand --- # 68 HRC hardness for superior heat resistance 2-3x faster drilling speed 5% Cobalt Steel for extreme durability Imperial M35 5% Cobalt Drill Bits Set (1/16-1/2 Inch,17PCS) for Hard Metal and Stainless Steel **Brand:** stroton **Price:** ฿4916 **Availability:** ✅ In Stock ## Summary > ⚡ Drill Like a Pro, Last Like a Legend ## Quick Answers - **What is this?** Imperial M35 5% Cobalt Drill Bits Set (1/16-1/2 Inch,17PCS) for Hard Metal and Stainless Steel by stroton - **How much does it cost?** ฿4916 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/509326611-imperial-m35-5-cobalt-drill-bits-set-1-16-1) ## Best For - stroton enthusiasts ## Why This Product - Trusted stroton brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Efficiency Booster:** Run 2-3 times faster than standard bits, saving you time on every project. - • **Precision Engineered:** Triple-ground cutting edges deliver razor-sharp accuracy and clean cuts every time. - • **Unmatched Durability:** Premium 5% cobalt steel ensures long-lasting performance even on the toughest metals. - • **Versatile Powerhouse:** Designed to drill through stainless steel, hardened steel, aluminum, wood, PVC, and more. - • **Cost-Effective Excellence:** Lower cost per hole thanks to extended tool life and superior chip resistance. ## Overview The Imperial M35 5% Cobalt Drill Bits Set features 17 precision-engineered bits ranging from 1/16 to 1/2 inch, crafted from premium cobalt steel with a 68 HRC rating. Designed for professionals tackling hard metals and stainless steel, these bits offer exceptional heat and wear resistance, triple-ground cutting edges for clean, fast drilling, and versatility across multiple materials. Ideal for those who demand speed, durability, and precision in every hole. ## Description STROTON Imperial M35 5% Cobalt Drill Bits Set (1/16-1/2 Inch,17PCS) for Hard Metal and Stainless Steel : desertcart.co.uk: DIY & Tools Review: very good Review: Excelentes para perforar acero inoxidable, al hacerlo hazlo a baja velocidad, lubricando constantemente y con cuidado. Son muy afiladas y de buen material ## Features - Premium 5% Cobalt Steel ,68 HRC (Rockwell Hardness Scale) ,the Cobalt Usually Give the Best Heat,Wear and Chip Resistance and Long Tool Life. - The Cutting Edge has been Ground Three Times and is made of Cobalt Steel, which has High Hardness and Heat Resistance. It is Designed for Drilling through Stainless Steel, Hardened Steel, Iron, Aluminum, Pipes, Wood, PVC, and Plastics. - This Heavy Duty Work Cobalt Drill Bit is Typically Capable of Running Two to Three Times Faster.Despite the Higher Price,the Cost Per Hole When Using Cobalt Drill Bit Will be the Lowest,Since It Can Produce So Many More Holes. - The Sufficiently Sharp Bit Edge Can Cut the Metal Material into Long Strips of Iron Chips rather than Slowly Grinding Through the Material with a Blunt Drill Bit. - 17Pcs 135 Degree Cobalt Industrial Hss Imperial Drill Bits Kit Includes :1/16 (2pcs), 5/64, 3/32 (2pcs), 7/64, 1/8 (2pcs), 9/64, 5/32, 3/16, 7/32, 1/4 (2pcs), 5/16, 3/8, 1/2 . ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09MRW8399 | | Best Sellers Rank | 81,593 in DIY & Tools ( See Top 100 in DIY & Tools ) 679 in Drill Bit Sets | | Brand | STROTON | | Country Of Origin | China | | Customer Reviews | 4.5 4.5 out of 5 stars (507) | | Cutting Angle String | 135 Degrees | | Cutting Diameter | 0.5 Inches | | Finish Types | High Speed Steel,Stainless Steel | | Item Dimensions | 18 x 13 x 4 centimetres | | Manufacturer | STROTON Ltd | | Material | Cobalt | | Minimum Bore Diameter | 0.06 Inches | | Model Number | Cobalt 6 series bits inch 1/16-1/2 | | Number of Flutes | 2 | | Point Style | Split Point | | Shank Type | 3-flats,Round | | Surface Recommendation | Metal, Plastic, Wood | | Tool Flute Type | Spiral | | UPC | 643459994935 | | Unit Count | 1.0 count | ## Product Details - **Cutting angle string:** 135 Degrees - **Cutting diameter:** 0.5 Inches - **Finish type:** High Speed Steel,Stainless Steel - **Material:** Cobalt - **Shank type:** 3-flats,Round ## Images ![Imperial M35 5% Cobalt Drill Bits Set (1/16-1/2 Inch,17PCS) for Hard Metal and Stainless Steel - Image 1](https://m.media-amazon.com/images/I/81nznZfGTrL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Are these good for make holes in steel material?** A: Yes，good for drilling steel.Generally, sellers purchase products from the market and sell them on e-commerce platforms. The STROTON drill bits we sell are designed and produced by our factory, including the case, which is unique on the market. This drill bit contains 6% cobalt, which is higher than general products. In addition, STROTON hss drill bits have a secret heat treatment recipe.So They’re good at drilling steel. **Q: Where are these made?** A: They are made in China. They are very good cobalt drill bits set.It is designed and manufactured by STROTON, different from the similar products in the market. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by A***R on 16 February 2026* very good ### ⭐⭐⭐⭐⭐ Review *by J***Ú on 6 March 2026* Excelentes para perforar acero inoxidable, al hacerlo hazlo a baja velocidad, lubricando constantemente y con cuidado. Son muy afiladas y de buen material ### ⭐⭐⭐⭐⭐ Review *by G***D on 10 January 2026* This is by far, the very best and highest quality drill bit set I have ever owned. Unlike other bits I have encountered, these bits stay sharp and get the job done. They are ideal for drilling through steel and iron plates leaving sharp, clean holes every time. The warranty is also great - break a bit and they will replace it free of charge. Warranty card is inside drill box. While I'm praising the bits, let me also acknowledge that the drill bit storage box is really nice too. Yes, it's plastic, but the quality stands out from other brands as well. The bit clamps actually "hold" the bits tightly in place while stored, and the closure mechanism is top of the line too. I am NOT a paid reviewer or someone who got the product so I would review it. These are my actual assessments of this product. I just felt strongly enough about it to let others know what a great product it is and give STROTON their deserved credit. ## Frequently Bought Together - STROTON Cobalt Drill Bit Set (1/16-1/2 Inch, 17PCS), M35 High Speed Steel Twist Drill Bits for Stainless Steel, Hard Metal, Cast Iron, Plastic and Wood - amoolo 3/8" Cobalt Drill Bit(5Pcs), M35 HSS Metal Drill Bit Set for Hard Metal, Stainless Steel, Cast Iron - BECOLLO 1/4 Inch Cobalt Drill Bit Set, M35 Jobber Length Twist Drill Bits,Suitable for Drilling in Hard Metal, Stainless Steel, Cast Iron,10 Pieces --- ## 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.co.th/products/509326611-imperial-m35-5-cobalt-drill-bits-set-1-16-1](https://www.desertcart.co.th/products/509326611-imperial-m35-5-cobalt-drill-bits-set-1-16-1) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-23*