{"product_id":"four-pack-1-4-28-threaded-drill-bits-set-cobalt-st","title":"Four Pack 1\/4-28 Threaded Drill Bits Set Cobalt Steel With Black Oxide Finish Sizes 40, 30, 21, 12 Pro Grade For Precision Metalworking DIY Projects Durable And Long Lasting","description":"\u003cdiv\u003eFour-Pack 1\/4-28 Threaded Drill Bits in Cobalt Steel\u003cbr\u003e\n✔️ Four pieces, 1\/4-28 threaded, sizes #40, #30, #21, #12, cobalt steel \u003cp\u003eThis four-piece set contains 1\/4-28 threaded drill bits crafted from cobalt steel with a black oxide finish. It’s a handy choice for precision drilling in metalworking, shop projects, and DIY fabrication.\u003c\/p\u003e ✅ Material: cobalt steel with black oxide finish\u003cbr\u003e\n✅ Thread: 1\/4-28; sizes #40, #30, #21, #12\u003cbr\u003e\n✅ Finish: wear-resistant black oxide coating\u003cbr\u003e\n✅ Applications: precision drilling for metalworking and DIY projects\u003cbr\u003e \u003cp\u003e💡 What is the best way to use 1\/4-28 threaded cobalt drill bits for metalworking? This handy guide explains how to get clean, precise holes.\u003c\/p\u003e\n- For drilling steel and aluminum, start with a center punch and use moderate speed.\u003cbr\u003e\n- Keep bit cool with lubrication and avoid overheating; re-lubricate as needed.\u003cbr\u003e\n- Use a drill press or guide to maintain straight holes and prevent wandering.\u003cbr\u003e\n- Select the correct pilot point and feed rate for best results.\u003cbr\u003e\n✝️\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":48958558798059,"sku":"VXB005VR9L3E","price":72.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/vxb.com\/products\/four-pack-1-4-28-threaded-drill-bits-set-cobalt-st","provider":"VXB Bearings","version":"1.0","type":"link"}