{"id":9427882606829,"title":"EZARC Step Drill Bit for Metal (3\/16''-7\/8'')，M35 Cobalt Wear-Resistant AlTiN Coated Step Drill Spiral Flute Unibit, 5\/16\" Thickened and 1\/4\" Hex Shank for Stainless Steel, Aluminum, Plastic 3\/16\"- 7\/8\"","handle":"ezarc-step-drill-bit-for-metal-3-16-7-8-m35-cobalt-wear-resistant-altin-coated-step-drill-spiral-flute-unibit-5-16-thickened-and-1-4-hex-shank-for-stainless-steel-aluminum-plastic-3-16-7-8","description":"\u003ch3\u003eEZARC Step Drill Bit for Metal (3\/16''-7\/8'')，M35 Cobalt Wear-Resistant AlTiN Coated Step Drill Spiral Flute Unibit, 5\/16\" Thickened and 1\/4\" Hex Shank for Stainless Steel, Aluminum, Plastic\u003c\/h3\u003e\n\u003cp id=\"b\"\u003e\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eLong-Lasting DurabilityEZARC step drill bit is made from heat-treated M35 cobalt high speed steel for superior strength and toughness over standard HSS, making it ideal for cutting stainless steel and other hard metals. The 89HRC AlTiN coating provides excellent heat, wear, and corrosion resistance for extended tool life.\u003c\/li\u003e\n \u003cli\u003eTriple-Flute C-Profile DesignTriple-flute structure improves drilling stability and reduces walking. The C-profile cutting edge enables faster, smoother cutting and cleaner holes in metal, stainless steel, aluminum, and plastic.\u003c\/li\u003e\n \u003cli\u003e12-Step SizesSpiral flute design enables smooth, efficient drilling across multiple material thicknesses, eliminating the need to change bits. Includes 12 sizes: 3\/16\", 1\/4\", 5\/16\", 3\/8\", 7\/16\", 1\/2\", 9\/16\", 5\/8\", 11\/16\", 3\/4\", 13\/16\", 7\/8\".\u003c\/li\u003e\n \u003cli\u003eReinforced ShankThe 5\/16'' thickened shank increases strength, fits perfectly into 1\/4\" quick-change chucks, is designed for quick-change drills and impact drivers, and can extend drilling depth to meet deep-hole requirements.\u003c\/li\u003e\n \u003cli\u003eImportant NotesSuitable for metal sheets up to 1\/8\" (3mm) thick and stainless steel up to 1mm. For better performance and longer tool life, use cutting oil or coolant during continuous drilling. Due to the larger cutting angles, initial drilling speed may be slower, which is normal.\u003c\/li\u003e\n \u003c\/ul\u003e","published_at":"2026-07-12T12:43:19+10:00","created_at":"2026-07-09T22:14:30+10:00","vendor":"EZARC","type":"Drill Bits","tags":["home_improvement_July2026"],"price":17400,"price_min":17400,"price_max":17400,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":50261754249453,"title":"3\/16\"- 7\/8\"","option1":"3\/16\"- 7\/8\"","option2":null,"option3":null,"sku":"B0GTR9CMHY","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"EZARC Step Drill Bit for Metal (3\/16''-7\/8'')，M35 Cobalt Wear-Resistant AlTiN Coated Step Drill Spiral Flute Unibit, 5\/16\" Thickened and 1\/4\" Hex Shank for Stainless Steel, Aluminum, Plastic 3\/16\"- 7\/8\" - 3\/16\"- 7\/8\"","public_title":"3\/16\"- 7\/8\"","options":["3\/16\"- 7\/8\""],"price":17400,"weight":159,"compare_at_price":null,"inventory_management":"shopify","barcode":"810151453026","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/leoforward.com\/cdn\/shop\/files\/B0GTR9CMHY.jpg?v=1783599272","\/\/leoforward.com\/cdn\/shop\/files\/81fe2AppwYL.jpg?v=1783599272","\/\/leoforward.com\/cdn\/shop\/files\/81O8ruAN_lL.jpg?v=1783599272","\/\/leoforward.com\/cdn\/shop\/files\/81Flx_CSqlL.jpg?v=1783599272","\/\/leoforward.com\/cdn\/shop\/files\/81mW4LUc34L.jpg?v=1783599272","\/\/leoforward.com\/cdn\/shop\/files\/81M0g9XEcaL.jpg?v=1783599272","\/\/leoforward.com\/cdn\/shop\/files\/71xmYhb2XwL.jpg?v=1783599272"],"featured_image":"\/\/leoforward.com\/cdn\/shop\/files\/B0GTR9CMHY.jpg?v=1783599272","options":["Size"],"media":[{"alt":null,"id":40825087918317,"position":1,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/leoforward.com\/cdn\/shop\/files\/B0GTR9CMHY.jpg?v=1783599272"},"aspect_ratio":1.0,"height":2000,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/B0GTR9CMHY.jpg?v=1783599272","width":2000},{"alt":null,"id":40825087951085,"position":2,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/leoforward.com\/cdn\/shop\/files\/81fe2AppwYL.jpg?v=1783599272"},"aspect_ratio":1.0,"height":2000,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/81fe2AppwYL.jpg?v=1783599272","width":2000},{"alt":null,"id":40825087983853,"position":3,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/leoforward.com\/cdn\/shop\/files\/81O8ruAN_lL.jpg?v=1783599272"},"aspect_ratio":1.0,"height":2000,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/81O8ruAN_lL.jpg?v=1783599272","width":2000},{"alt":null,"id":40825088016621,"position":4,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/leoforward.com\/cdn\/shop\/files\/81Flx_CSqlL.jpg?v=1783599272"},"aspect_ratio":1.0,"height":2000,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/81Flx_CSqlL.jpg?v=1783599272","width":2000},{"alt":null,"id":40825088049389,"position":5,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/leoforward.com\/cdn\/shop\/files\/81mW4LUc34L.jpg?v=1783599272"},"aspect_ratio":1.0,"height":2000,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/81mW4LUc34L.jpg?v=1783599272","width":2000},{"alt":null,"id":40825088082157,"position":6,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/leoforward.com\/cdn\/shop\/files\/81M0g9XEcaL.jpg?v=1783599272"},"aspect_ratio":1.0,"height":2000,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/81M0g9XEcaL.jpg?v=1783599272","width":2000},{"alt":null,"id":40825088114925,"position":7,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/leoforward.com\/cdn\/shop\/files\/71xmYhb2XwL.jpg?v=1783599272"},"aspect_ratio":1.0,"height":2000,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/71xmYhb2XwL.jpg?v=1783599272","width":2000}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eEZARC Step Drill Bit for Metal (3\/16''-7\/8'')，M35 Cobalt Wear-Resistant AlTiN Coated Step Drill Spiral Flute Unibit, 5\/16\" Thickened and 1\/4\" Hex Shank for Stainless Steel, Aluminum, Plastic\u003c\/h3\u003e\n\u003cp id=\"b\"\u003e\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eLong-Lasting DurabilityEZARC step drill bit is made from heat-treated M35 cobalt high speed steel for superior strength and toughness over standard HSS, making it ideal for cutting stainless steel and other hard metals. The 89HRC AlTiN coating provides excellent heat, wear, and corrosion resistance for extended tool life.\u003c\/li\u003e\n \u003cli\u003eTriple-Flute C-Profile DesignTriple-flute structure improves drilling stability and reduces walking. The C-profile cutting edge enables faster, smoother cutting and cleaner holes in metal, stainless steel, aluminum, and plastic.\u003c\/li\u003e\n \u003cli\u003e12-Step SizesSpiral flute design enables smooth, efficient drilling across multiple material thicknesses, eliminating the need to change bits. Includes 12 sizes: 3\/16\", 1\/4\", 5\/16\", 3\/8\", 7\/16\", 1\/2\", 9\/16\", 5\/8\", 11\/16\", 3\/4\", 13\/16\", 7\/8\".\u003c\/li\u003e\n \u003cli\u003eReinforced ShankThe 5\/16'' thickened shank increases strength, fits perfectly into 1\/4\" quick-change chucks, is designed for quick-change drills and impact drivers, and can extend drilling depth to meet deep-hole requirements.\u003c\/li\u003e\n \u003cli\u003eImportant NotesSuitable for metal sheets up to 1\/8\" (3mm) thick and stainless steel up to 1mm. For better performance and longer tool life, use cutting oil or coolant during continuous drilling. Due to the larger cutting angles, initial drilling speed may be slower, which is normal.\u003c\/li\u003e\n \u003c\/ul\u003e"}