{"@context":"https://schema.org","@type":"Product","name":"Libraton 3PCS M35 Cobalt Step Drill Bit Set with Four Spiral Flute, AlTiN Coated","description":"4-Flute Turbo-Cutting System: Engineered with advanced quad-spiral grooves, this set delivers 40% faster chip evacuation than standard 2-flute competitors. This innovative geometry virtually eliminates jams and ensures smooth, continuous drilling even in deep holes. Military-Grade M35 Cobalt Core: Forged from high-performance HSS with 5% Cobalt alloy , these bits can withstand extreme heat up to 1,450°F . This provides a 3X longer lifespan compared to standard HSS bits, making them ideal for hardened steel, stainless steel, and carbon fiber composites. Nano-AlTiN Armor Coating: Features a premium Aluminum Titanium Nitride (AlTiN) coating with a surface hardness of 89HRC and a ultra-low 0.45 friction coefficient . This \"armor\" layer far outlasts traditional TiN coatings, allowing for higher drilling speeds and superior wear resistance. Universal 1/4\" Hex Shank: Designed for maximum compatibility, the anti-slip 1/4-inch hex shank fits securely into impact drivers and power drills. The specialized grooves prevent chuck slippage even under high-torque applications (up to 35N·m ). 34 Precision Step Sizes: This 3-piece set offers a comprehensive range of 34 step sizes , covering diameters from 1/8\" to 7/8\" in precise 0.04\" increments. Perfect for precise hole enlarging in metal, plastic, and wood. Pro-Grade Protection: Includes a rugged, shockproof carrying case to ensure your precision bits remain protected, organized, and ready for the most demanding job sites.","descriptionSections":[{"heading":"Product overview","text":"4-Flute Turbo-Cutting System: Engineered with advanced quad-spiral grooves, this set delivers 40% faster chip evacuation than standard 2-flute competitors. This innovative geometry virtually eliminates jams and ensures smooth, continuous drilling even in deep holes. Military-Grade M35 Cobalt Core: Forged from high-performance HSS with 5% Cobalt alloy , these bits can withstand extreme heat up to 1,450°F . This provides a 3X longer lifespan compared to standard HSS bits, making them ideal for hardened steel, stainless steel, and carbon fiber composites. Nano-AlTiN Armor Coating: Features a premium Aluminum Titanium Nitride (AlTiN) coating with a surface hardness of 89HRC and a ultra-low 0.45 friction coefficient . This \"armor\" layer far outlasts traditional TiN coatings, allowing for higher drilling speeds and superior wear resistance. Universal 1/4\" Hex Shank: Designed for maximum compatibility, the anti-slip 1/4-inch hex shank fits securely into impact drivers and power drills. The specialized grooves prevent chuck slippage even under high-torque applications (up to 35N·m ). 34 Precision Step Sizes: This 3-piece set offers a comprehensive range of 34 step sizes , covering diameters from 1/8\" to 7/8\" in precise 0.04\" increments. Perfect for precise hole enlarging in metal, plastic, and wood. Pro-Grade Protection: Includes a rugged, shockproof carrying case to ensure your precision bits remain protected, organized, and ready for the most demanding job sites.","blocks":[{"kind":"bullet","text":"4-Flute Turbo-Cutting System: Engineered with advanced quad-spiral grooves, this set delivers 40% faster chip evacuation than standard 2-flute competitors. This innovative geometry virtually eliminates jams and ensures smooth, continuous drilling even in deep holes."},{"kind":"bullet","text":"Military-Grade M35 Cobalt Core: Forged from high-performance HSS with 5% Cobalt alloy , these bits can withstand extreme heat up to 1,450°F . This provides a 3X longer lifespan compared to standard HSS bits, making them ideal for hardened steel, stainless steel, and carbon fiber composites."},{"kind":"bullet","text":"Nano-AlTiN Armor Coating: Features a premium Aluminum Titanium Nitride (AlTiN) coating with a surface hardness of 89HRC and a ultra-low 0.45 friction coefficient . This \"armor\" layer far outlasts traditional TiN coatings, allowing for higher drilling speeds and superior wear resistance."},{"kind":"bullet","text":"Universal 1/4\" Hex Shank: Designed for maximum compatibility, the anti-slip 1/4-inch hex shank fits securely into impact drivers and power drills. The specialized grooves prevent chuck slippage even under high-torque applications (up to 35N·m )."},{"kind":"bullet","text":"34 Precision Step Sizes: This 3-piece set offers a comprehensive range of 34 step sizes , covering diameters from 1/8\" to 7/8\" in precise 0.04\" increments. Perfect for precise hole enlarging in metal, plastic, and wood."},{"kind":"bullet","text":"Pro-Grade Protection: Includes a rugged, shockproof carrying case to ensure your precision bits remain protected, organized, and ready for the most demanding job sites."}],"sourceId":"m1"}],"storeName":"EZARC Tools","seoDescription":null,"url":"https://www.ezarctools.com/products/libraton-3pcs-m35-cobalt-step-drill-bit-set-with-four-spiral-flute-altin-coated","brand":{"@type":"Brand","name":"Libraton Tools"},"category":"Drilling","tags":["application:cutting","application:drilling","brand:ezarc","compat:drill-driver","compat:impact-tool","Libraton","Wood & Metal Working Tools","work-material:metal","work-material:wood"],"image":["https://cdn.shopify.com/s/files/1/0575/4975/0423/files/beb2907e4385d75d61eb1ae0e9ab44b4.jpg?v=1776669348","https://cdn.shopify.com/s/files/1/0575/4975/0423/files/1_678eca97-3006-4e2b-ba86-511323a77e92.jpg?v=1776669348","https://cdn.shopify.com/s/files/1/0575/4975/0423/files/2_cf360e3a-ecbe-4c49-8707-1fbd645ec684.jpg?v=1776669348","https://cdn.shopify.com/s/files/1/0575/4975/0423/files/3_8914dce2-5abe-4b9e-892a-b050a2fc959d.jpg?v=1776669348","https://cdn.shopify.com/s/files/1/0575/4975/0423/files/4_62202e05-9357-4dce-b73b-dc807318a944.jpg?v=1776669348","https://cdn.shopify.com/s/files/1/0575/4975/0423/files/5_0a185b6c-b199-4144-9ca6-aec04c849227.jpg?v=1776669348","https://cdn.shopify.com/s/files/1/0575/4975/0423/files/6_3286838d-28c2-4c22-8ab9-7b95d1d1dfbf.jpg?v=1776669348","https://cdn.shopify.com/s/files/1/0575/4975/0423/files/7_67e01d5c-6760-4dd8-bfe4-e1a84efc2200.jpg?v=1776669348","https://cdn.shopify.com/s/files/1/0575/4975/0423/files/8_a298d0e7-5831-4065-9f56-d66b050243c0.jpg?v=1776669348"],"imageMetadata":[{"url":"https://cdn.shopify.com/s/files/1/0575/4975/0423/files/beb2907e4385d75d61eb1ae0e9ab44b4.jpg?v=1776669348","altText":""},{"url":"https://cdn.shopify.com/s/files/1/0575/4975/0423/files/1_678eca97-3006-4e2b-ba86-511323a77e92.jpg?v=1776669348","altText":""},{"url":"https://cdn.shopify.com/s/files/1/0575/4975/0423/files/2_cf360e3a-ecbe-4c49-8707-1fbd645ec684.jpg?v=1776669348","altText":""},{"url":"https://cdn.shopify.com/s/files/1/0575/4975/0423/files/3_8914dce2-5abe-4b9e-892a-b050a2fc959d.jpg?v=1776669348","altText":""},{"url":"https://cdn.shopify.com/s/files/1/0575/4975/0423/files/4_62202e05-9357-4dce-b73b-dc807318a944.jpg?v=1776669348","altText":""},{"url":"https://cdn.shopify.com/s/files/1/0575/4975/0423/files/5_0a185b6c-b199-4144-9ca6-aec04c849227.jpg?v=1776669348","altText":""},{"url":"https://cdn.shopify.com/s/files/1/0575/4975/0423/files/6_3286838d-28c2-4c22-8ab9-7b95d1d1dfbf.jpg?v=1776669348","altText":""},{"url":"https://cdn.shopify.com/s/files/1/0575/4975/0423/files/7_67e01d5c-6760-4dd8-bfe4-e1a84efc2200.jpg?v=1776669348","altText":""},{"url":"https://cdn.shopify.com/s/files/1/0575/4975/0423/files/8_a298d0e7-5831-4065-9f56-d66b050243c0.jpg?v=1776669348","altText":""}],"offers":[{"@type":"Offer","name":"Default Title","url":"https://www.ezarctools.com/apps/arenza/products/libraton-3pcs-m35-cobalt-step-drill-bit-set-with-four-spiral-flute-altin-coated?view=shop&variant=47696127066263","price":"42.99","priceCurrency":"USD","sku":"90139001","availableForPurchase":true,"oneTimePurchase":true,"additionalProperty":[{"@type":"PropertyValue","name":"Available to purchase","value":true},{"@type":"PropertyValue","name":"Option","value":"Default Title"}],"potentialAction":{"@type":"BuyAction","target":"https://www.ezarctools.com/apps/arenza/products/libraton-3pcs-m35-cobalt-step-drill-bit-set-with-four-spiral-flute-altin-coated?view=buy&variant=47696127066263"}}],"variantCoverage":{"exposed":1,"total":1,"complete":true},"source":"live_public_shopify_product","illustrative":false,"updatedAt":"2026-11-06T09:16:35Z","checkedAt":"2026-11-06T23:42:17.757Z","buyingConditions":"Currency verified from the anonymous storefront. 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