--- product_id: 471742397 title: "Jerax toolsStep Drill Bit Straight Grooved Double Fluted 1/4 to 1-3/8 Inch, M2 High speed steel drill bits for hole drilling in Stainless steel, Plastic, Unibit with highlighted steps and size marks" brand: "jerax tools" price: "¥12548" currency: JPY in_stock: true url: https://www.desertcart.jp/products/471742397-jerax-toolsstep-drill-bit-straight-grooved-double-fluted-1-4 store_origin: JP region: Japan --- # Optimized spiral flute design for faster debris removal 6 precision marked step sizes from 1/4" to 1-3/8" M2 HSS with 50% more Tungsten & 150% more Molybdenum Jerax toolsStep Drill Bit Straight Grooved Double Fluted 1/4 to 1-3/8 Inch, M2 High speed steel drill bits for hole drilling in Stainless steel, Plastic, Unibit with highlighted steps and size marks **Brand:** jerax tools **Price:** ¥12548 **Availability:** ✅ In Stock ## Summary > 🛠️ Drill Smarter, Not Harder — The Only Step Bit You’ll Ever Need! ## Quick Answers - **What is this?** Jerax toolsStep Drill Bit Straight Grooved Double Fluted 1/4 to 1-3/8 Inch, M2 High speed steel drill bits for hole drilling in Stainless steel, Plastic, Unibit with highlighted steps and size marks by jerax tools - **How much does it cost?** ¥12548 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/471742397-jerax-toolsstep-drill-bit-straight-grooved-double-fluted-1-4) ## Best For - jerax tools enthusiasts ## Why This Product - Trusted jerax tools brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **See Your Progress:** Polished steps and highlighted size marks let you drill without stopping—no guesswork, just precision. - • **One Bit, Six Sizes:** Versatile step drill bit covers 6 hole sizes, eliminating the need for multiple bits and saving your valuable time. - • **Cut with Confidence:** Premium M2 High-Speed Steel with advanced vacuum heat & nitride treatment ensures durability and ultra-clean holes every time. - • **Built for Heavy Duty:** Effortlessly drills through stainless steel (up to 12ga/2.7mm), hardened metals, plastics, and more—your all-in-one powerhouse. - • **Smooth & Fast Drilling:** Optimized spiral flute design ejects debris quickly, reducing burrs and resistance for effortless, professional results. ## Overview Jerax Tools’ Step Drill Bit features premium M2 High-Speed Steel with enhanced tungsten and molybdenum content, vacuum heat treatment, and nitride surface hardening for superior durability. Its unique spiral flute design ensures faster debris removal and cleaner holes, while polished steps with size markings allow continuous drilling without interruption. Covering six hole sizes from 1/4" to 1-3/8", this heavy-duty bit handles stainless steel, hardened metals, plastics, and more, making it an indispensable tool for professionals seeking efficiency and precision. ## Description Jerax toolsStep Drill Bit Straight Grooved Double Fluted 1/4 to 1-3/8 Inch, M2 High speed steel drill bits for hole drilling in Stainless steel, Plastic, Unibit with highlighted steps and size marks ## Features - [M2 HSS]: Cuts A LOT MORE CLEAN holes and much EASIER than average step bits. In general, M2 has 50% more Tungsten and 150% more Molybdenum, both of which are key elements in improving durability. Our additional Vacuum heat treatment and Nitride surface hardening treatment make the performance even better. - [Non-stop]: Our Polished Steps and Size Highlights let you able to see target hole size during drilling. No need to stop in the middle of the drilling and check. Save you time and hassle. - [Easier | Faster | Cleaner]: With our high-accuracy CNC processing and several optimized design details over the years, our design cuts EASY, FAST and CLEAN, outperforming the average ones on the market. - [Heavy duty]: Cuts holes on Stainless steel, Hardened Metal, Mild steel, Galvanized steel, Aluminum, Copper, Plastic, Wood, or anything that has similar or lower hardness as these materials. Up to 12ga /2.7mm thickness for Stainless steel. - [Multi Hole Sizes]: No need to buy a kit. This one step bit comes with 6 marked sizes so you can drill 6 different hole sizes, saving you time and effort to change bits. Marked sizes including: 1/4", 7/8", 1-1/8", 1-7/32", 1-1/4", 1-3/8". ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Jerax tools | | Part number | STG1-3/8 | | Item Weight | 45.4 g | | Product Dimensions | 3.51 x 3.51 x 9.02 cm; 45.36 g | | Item model number | STG1-3/8 | | Size | 1-3/8"（Straight) | | Style | Straight Grooved | | Finish | Nitride hardening treated | | Material | High Speed Steel (HSS) | | Item Package Quantity | 1 | | Tool tip description | Split Point | | Measurement System | Imperial | | Batteries included? | No | | Batteries Required? | No | ## Product Details - **Material:** High Speed Steel (HSS) - **Finish type:** Nitride hardening treated - **Shank type:** 3-Flat - **Cutting angle string:** 135 Degrees - **Brand:** Jerax tools ## Images ![Jerax toolsStep Drill Bit Straight Grooved Double Fluted 1/4 to 1-3/8 Inch, M2 High speed steel drill bits for hole drilling in Stainless steel, Plastic, Unibit with highlighted steps and size marks - Image 1](https://m.media-amazon.com/images/I/61uPaRTO-SL.jpg) ![Jerax toolsStep Drill Bit Straight Grooved Double Fluted 1/4 to 1-3/8 Inch, M2 High speed steel drill bits for hole drilling in Stainless steel, Plastic, Unibit with highlighted steps and size marks - Image 2](https://m.media-amazon.com/images/I/71bwTGKhlWL.jpg) ![Jerax toolsStep Drill Bit Straight Grooved Double Fluted 1/4 to 1-3/8 Inch, M2 High speed steel drill bits for hole drilling in Stainless steel, Plastic, Unibit with highlighted steps and size marks - Image 3](https://m.media-amazon.com/images/I/71EURu4sNBL.jpg) ![Jerax toolsStep Drill Bit Straight Grooved Double Fluted 1/4 to 1-3/8 Inch, M2 High speed steel drill bits for hole drilling in Stainless steel, Plastic, Unibit with highlighted steps and size marks - Image 4](https://m.media-amazon.com/images/I/714RRNvHPOL.jpg) ![Jerax toolsStep Drill Bit Straight Grooved Double Fluted 1/4 to 1-3/8 Inch, M2 High speed steel drill bits for hole drilling in Stainless steel, Plastic, Unibit with highlighted steps and size marks - Image 5](https://m.media-amazon.com/images/I/61J+aF+1kbL.jpg) ## Available Options This product comes in different **Size, Item Package Quantity** options. ## Frequently Bought Together - Jerax tools 1/4 to 1-3/8 Inch Step Drill Bit Straight Grooved Double Fluted, M2 High Speed Steel Drill bits for Hole Drilling in Stainless Steel, Copper, Aluminum, Wood, Plastic - DEWALT Drill Bit Set, 14-Piece, 135 Degree Split Point, For Plastic, Wood and Metal (DWA1184) - Jerax tools M2 HSS Quick Change 3/16" - 7/8" Step Drill Bit Double Fluted Drill bits for Hole Drilling in Stainless Steel, Copper, Aluminum, Wood, Plastic --- ## 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.jp/products/471742397-jerax-toolsstep-drill-bit-straight-grooved-double-fluted-1-4](https://www.desertcart.jp/products/471742397-jerax-toolsstep-drill-bit-straight-grooved-double-fluted-1-4) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-05-03*