--- product_id: 264024593 title: "Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs)" brand: "stroton" price: "€ 73.20" currency: EUR in_stock: true reviews_count: 8 category: "Stroton" url: https://www.desertcart.sk/products/264024593-metric-m42-8-cobalt-twist-drill-bits-set-for-stainless store_origin: SK region: Slovakia --- # 3-5x faster drilling efficiency 68-70 HRC Rockwell hardness for heat & wear resistance M42 8% Cobalt HSS for ultimate durability Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs) **Brand:** stroton **Price:** € 73.20 **Availability:** ✅ In Stock ## Summary > ⚡ Drill smarter, not harder — power through metals with precision and speed! ## Quick Answers - **What is this?** Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs) by stroton - **How much does it cost?** € 73.20 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/264024593-metric-m42-8-cobalt-twist-drill-bits-set-for-stainless) ## 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 - • **Unmatched Durability:** Premium M42 cobalt steel ensures long-lasting performance even on the toughest metals. - • **Versatile Size Range:** 19-piece set from 1mm to 10mm in 0.5mm increments covers every project need. - • **Precision Engineering:** 135° split point design delivers clean, chip-free holes every time. - • **Speed Meets Efficiency:** Drill through stainless steel and hard metals up to 5x faster, saving you valuable time. - • **Cost-Effective Excellence:** Despite premium quality, the lowest cost per hole thanks to extended tool life. ## Overview The STROTON Metric M42 8% Cobalt Twist Drill Bits Set features 19 precision-engineered bits ranging from 1mm to 10mm, crafted from high-grade cobalt steel with 68-70 HRC hardness. Designed for superior heat and wear resistance, these bits drill stainless steel, hard metals, and hardwood up to 5 times faster with a 135° split point for clean, efficient cuts. Ideal for professionals demanding durability, speed, and versatility in one comprehensive set. ## Description Buy STROTON Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs) online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase. Review: Good quality - Very good quality Review: Very good drill bits - Great drill bits. They cut through stainless steel very nicely if you take your time and use a cutting fluid to keep them cool. Had a minor issue with one of the bits snapping (my fault) but the seller took care of the issue immediately and was very responsive. ## Features - Premium M42 8% Cobalt HSS Drill Bit Set, 68-70 HRC (Rockwell Hardness Scale), usually provides the best heat, wear and chip resistance and long tool life. - The three-stage design can improve the efficiency of drilling stainless steel, aluminum, copper, plastic and hardwood. - This twist drill bit is usually able to run three to five times faster. Despite the higher price, the cost per hole is the lowest when using a cobalt drill as it can produce so many more holes. - The sufficiently sharp bit edge can cut the metal material into long strips of iron shavings instead of slowly grinding the material with a blunt drill. - 19 piece 135 degree split point steel drill set includes: 1 mm (length: 3.4 cm) 1.5 mm 2 mm 2.5 mm 3 mm 3.5 mm 4 mm 4.5 mm 5 mm (length: 8.5 cm) 5.5 mm 6 mm (length: 9 cm) 6.5 mm 7.5 mm 8 mm (length: 11.5 cm) 8.5 mm 9 mm 9.5 mm 10mm(length: 13 cm) [1-10 mm in 0.5 mm increments] . ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07MZQMPMC | | ASIN | B07MZQMPMC | | Best Sellers Rank | #7,844 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #45 in Power Drill Bit Sets | | Brand Name | STROTON | | Customer Reviews | 4.4 4.4 out of 5 stars (4,456) | | Customer reviews | 4.4 4.4 out of 5 stars (4,456) | | Cutting Angle String | 135 Degrees | | Cutting Diameter | 10 Millimeters | | Date First Available | 2 March 2019 | | Finish Types | Uncoated | | Is Discontinued By Manufacturer | No | | Item Weight | 454 g | | Manufacturer | STROTON | | Manufacturer | STROTON | | Material Type | Cobalt | | Minimum Bore Diameter | 1 Millimeters | | Number of Flutes | 2 | | Package Dimensions | 17.6 x 12.5 x 4.4 cm; 453.59 g | | Point Style | Split Point | | Shank Type | Straight | | Surface Recommendation | Stainless Steel, Hard Metal, Hardwood, Aluminum, Plastic | | Tool Flute Type | Spiral | | UPC | 743829466298 | | Unit Count | 1 Count | ## Product Details - **Cutting angle string:** 135 Degrees - **Cutting diameter:** 10 Millimeters - **Finish type:** Uncoated - **Material:** Cobalt - **Shank type:** Straight ## Images ![Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs) - Image 1](https://m.media-amazon.com/images/I/71YyLQiGN8L.jpg) ## Available Options This product comes in different **Pattern** options. ## Questions & Answers **Q: Can these drill through a car's trunk without any issues?** A: These are made to drill through thick hard steel. Thus are very hard and brittle and will break easily if improper angle is applied. For drilling trunk or locks use a titanium bit and buy a few of them as they dull quick but get the job done. **Q: Bought the 19 pc set; 3mm but broke immediately. Can anyone point me to where I can buy replacement? Thank you.** A: Hi,I am the seller. You need to click the blue word [STROTON] in "Sold by STROTON and Fulfilled by Amazon" below the "Add to Cart" of this Drill bit's listing. Then click [Ask a question] that write the condtion simply to Establish contact channels with me through Amazon message system. Then I can handle the follow-up to your order. Best regards STROTON **Q: Can they drill titanium** A: Honestly,They are good for drilling steel and do the job well. But Titanium alloy has very high hardness. And We can't guarantee. If it doesn't work well, you could return it. If it works（Lubricant Must Be Used）, you could share it with other customers. **Q: What is the length of these bits?** A: They are average lengths. The 1mm is 3.4cm and length increase proportionally to the 10mm which is 5.4cm. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good quality *by J***I on 20 December 2025* Very good quality ### ⭐⭐⭐⭐⭐ Very good drill bits *by B***E on 11 July 2025* Great drill bits. They cut through stainless steel very nicely if you take your time and use a cutting fluid to keep them cool. Had a minor issue with one of the bits snapping (my fault) but the seller took care of the issue immediately and was very responsive. ### ⭐⭐⭐⭐⭐ Very high quality drills *by C***S on 30 November 2023* I am a metal worker for 23 years, hard to find any better cobalt drills. Highly recommended. ## Frequently Bought Together - Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs) - Tap Magic 30004P ProTap Cutting Fluid, 4 oz. Size - MACXCOIP Cobalt Drill Bit Set, 115Pcs M35 High Speed Steel Bits for Hardened Metals, Stainless Steel, Cast Iron and Wooden Plastics, with Metal Index Storage Box --- ## 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.sk/products/264024593-metric-m42-8-cobalt-twist-drill-bits-set-for-stainless](https://www.desertcart.sk/products/264024593-metric-m42-8-cobalt-twist-drill-bits-set-for-stainless) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-06-09*