{"product_id":"25-32-x-21-in-sds-max-rotary-hammer-drill-bit-deep-concrete-drilling","title":"25\/32 x 21 in SDS Max Rotary Hammer Drill Bit - Deep Concrete Drilling","description":"\u003cp\u003eIn this review the 25\/32 x 21 in SDS Max Rotary Hammer Drill Bit is evaluated as a purpose-built option for heavy masonry work. The bottom line: this long 540mm bit is for tradespeople and serious DIYers who need a long reach and an SDS Max connection to drive through concrete, brick and stone; its single biggest selling point is the combination of a 406mm effective drilling depth and a carbide tip that holds up to repeated percussion drilling. The review focuses on real use, durability and when this bit makes sense on the jobsite.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength and reach:\u003c\/strong\u003e The 540mm total length with a 406mm drilling depth gives plenty of reach for deep holes in thick walls or footings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust shank:\u003c\/strong\u003e The SDS Max shank with an 18mm shank diameter provides a secure, professional connection for rotary hammer tools to reduce wobble during heavy drilling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbide tip:\u003c\/strong\u003e The plus-type carbide tip is designed to withstand repeated impact on concrete and brick, improving tip life and maintaining cutting performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlloy steel body:\u003c\/strong\u003e The alloy steel shaft balances toughness and resistance to bending during extended drilling tasks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSized for common anchors:\u003c\/strong\u003e The 20mm (25\/32 in) diameter suits medium anchor and dowel sizes used in masonry installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-material use:\u003c\/strong\u003e Built to perform in concrete, masonry, brick and natural stone for general construction and renovation work.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis drill bit is aimed at professional builders, masons and experienced DIYers who use rotary hammers with an SDS Max interface and need to bore deep holes into concrete, cinder block, brick or stone. The long 21 in length and 16 in effective depth are useful for through-wall anchor installation, deep sleeves for piping or electrical runs and other demanding tasks.\u003c\/p\u003e\n\u003cp\u003eIt is not the best choice for light occasional tasks or for users with small SDS Plus tools, since the SDS Max shank and long length are overkill for simple household drilling and require compatible equipment and some experience to use safely.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLong 540mm length provides extended reach for deep holes and hard-to-access locations.\u003c\/li\u003e\n\u003cli\u003eSDS Max shank gives a solid, professional connection and reduces tool play under load.\u003c\/li\u003e\n\u003cli\u003eCarbide tip and alloy steel shaft resist wear and keep drilling performance consistent.\u003c\/li\u003e\n\u003cli\u003eAppropriate 20mm diameter for common masonry anchors and sleeves.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMixed customer feedback on tip strength suggests performance can vary with extreme conditions or very abrasive aggregate.\u003c\/li\u003e\n\u003cli\u003eRequires SDS Max hammer; not compatible with smaller SDS Plus tools.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e20mm (25\/32 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal length\u003c\/td\u003e\n\u003ctd\u003e540mm (21 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrilling depth\u003c\/td\u003e\n\u003ctd\u003e406mm (16 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank type\u003c\/td\u003e\n\u003ctd\u003eSDS Max (shank dia 18mm \/ 0.7 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTip material\u003c\/td\u003e\n\u003ctd\u003ePlus-type carbide tip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody material\u003c\/td\u003e\n\u003ctd\u003eAlloy steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe 25\/32 x 21 in SDS Max rotary hammer bit is a practical choice for professionals and serious DIYers who need reliable deep drilling in masonry and concrete. It delivers strong reach, a secure SDS Max connection and a carbide tip that generally stands up to jobsite demands, making it good value when paired with a compatible rotary hammer and heavier workloads.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this bit compatible with my rotary hammer?\u003c\/strong\u003e\u003cbr\u003eThe bit requires an SDS Max chuck; it will not fit SDS Plus tools, so verify your tool accepts SDS Max shanks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow deep can it drill?\u003c\/strong\u003e\u003cbr\u003eThe total length is 540mm and the effective drilling depth is 406mm, allowing deep holes for anchors and sleeves.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials can it handle?\u003c\/strong\u003e\u003cbr\u003eIt is intended for concrete, masonry, brick and natural stone, using the carbide tip to resist wear under percussion drilling.\u003c\/p\u003e","brand":"GRIXLEN","offers":[{"title":"Default Title","offer_id":48186018267355,"sku":"B0DNJWM6PB","price":35.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51r7PlqiIPL._SL1500.jpg?v=1769610771","url":"https:\/\/gearmusthave.com\/products\/25-32-x-21-in-sds-max-rotary-hammer-drill-bit-deep-concrete-drilling","provider":"GearMustHave","version":"1.0","type":"link"}