{"product_id":"bosch-hs1821-1-1-8-inch-x-15-inch-slotting-tool-round-hex-spline-hammer-steel-heavy-duty-concrete-masonry-repair-chisel-channeling-gouging-bit","title":"Bosch HS1821 1-1\/8 Inch x 15 Inch Slotting Tool Round Hex Spline Hammer Steel Heavy Duty Concrete Masonry Repair Chisel Channeling Gouging Bit","description":"\u003ch2 style=\"color: #004b87; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;\"\u003e\u003ca title=\"Link to the Bosch Tools homepage.\" href=\"https:\/\/www.1toptools.com\/pages\/brand-bosch\"\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto;\" alt=\"Bosch Promtional Logo Logout\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2274\/5945\/files\/Bosch_Promtional_Logo.png?v=1772729021\"\u003e\u003c\/a\u003e\u003c\/h2\u003e\n\u003ch2 style=\"color: #004b87; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;\"\u003eCut Precise Joint Grooves and Clean Narrow Channels in Commercial Poured Concrete and Masonry Structures with Forged Slotting Steel\u003c\/h2\u003e\n\u003cp style=\"font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; line-height: 1.6; color: #333333;\"\u003eTransform your masonry remediation and layout channelling efficiency with the professional-grade Bosch 1-1\/8 Inch Width x 15 Inch Length Slotting Tool Round Hex\/Spline Hammer Steel. Specifically engineered for commercial electrical contractors, industrial plumbing crews, structural restoration teams, and waterproofing specialists, this premium slotting bit provides unmatched control over targeted demolition. Standard masonry chisels feature flat edges that scatter fracture lines randomly, often cracking adjoining structural surfaces and leaving messy paths during joint repair work. This heavy-duty structural slotting tool resolves that field bottleneck by introducing an optimized narrow, concave wedging face that concentrates kinetic impact waves perfectly to track straight, carving crisp lines for conduit installation, pipe routing, or structural expansion joint cleaning.\u003c\/p\u003e\n\u003cp style=\"font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; line-height: 1.6; color: #333333;\"\u003eForged in Italy from high-stress structural alloy steel, this durable 15-inch monoblock tool benefits from an exclusive, proprietary thermal heat-treating process that tempers the metal core matrix to absorb intense continuous mechanical shock. This specialized structural composition translates the high-velocity percussion output of your combination hammer tools straight down the axis of the shaft, avoiding lateral flex and preventing premature mid-body fractures under continuous heavy loads. Engineered to plow through high-psi poured concrete, dense block backings, mortar seams, and hard aggregate building brick, this narrow gouging profile lets operators make surgical breakthroughs inside tight foundational corners. Complete with a universal round hex and spline combination shank that slides smoothly into heavy-duty chipping hammer tools, this commercial slotting bit guarantees precision and clean track paths shift after shift.\u003c\/p\u003e\n\u003ch3 style=\"color: #004b87; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;\"\u003eKey Features\u003c\/h3\u003e\n\u003cul style=\"font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; line-height: 1.6; color: #333333;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eTargeted 1-1\/8 Inch Cutting Face:\u003c\/strong\u003e Narrow structural head profile concentrates impact force to gouge sharp, uniform channels without cracking surrounding walls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProprietary Heat-Treat Engineering:\u003c\/strong\u003e Advanced computer-controlled thermal matrix tempering maximizes alloy steel density to stop structural bit failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMonoblock One-Piece Forging:\u003c\/strong\u003e Streamlined solid core architecture transmits percussive impact waves smoothly, eliminating torque deflection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Joint Restoring Index:\u003c\/strong\u003e Tailored specifically to achieve straight tracking during deep mortar joint clearing, expansion slotting, and structural cracks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Spline \/ Round Hex Fit:\u003c\/strong\u003e Slotted multi-fit shank connection engages mechanically inside all standard combination rotary hammer tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Friction Profile Alignment:\u003c\/strong\u003e Tapered cutting edges direct pulverized stone dust outward, preventing the tool head from binding inside deep slots.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"color: #004b87; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;\"\u003eWhat's Included\u003c\/h3\u003e\n\u003cul style=\"font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; line-height: 1.6; color: #333333;\"\u003e\n\u003cli\u003e(1) Bosch HS1821 1-1\/8 in. x 15 in. Round Hex \/ Spline Drive Slotting Tool Chisel Bit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe width=\"1274\" height=\"717\" src=\"https:\/\/www.youtube.com\/embed\/H4flH5Vgrw4\" title=\"“Macho Man” | Bosch 18V 2-in-1 Impact Driver\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch3 style=\"color: #004b87; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;\"\u003eSpecifications\u003c\/h3\u003e\n\u003ctable height=\"704\" style=\"width: 42.6786%; border-collapse: collapse; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; color: rgb(51, 51, 51);\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #004b87; color: #ffffff; text-align: left;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 31.3059%;\"\u003eSpecification Profile\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 68.6941%;\"\u003eDetails \/ Performance Value\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #ffffff;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 31.3059%;\"\u003e\u003cstrong\u003eBrand Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 68.6941%;\"\u003eBosch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fff0f5;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 31.3059%;\"\u003e\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 68.6941%;\"\u003eHS1821\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #ffffff;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 31.3059%;\"\u003e\u003cstrong\u003eProduct Accessory Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 68.6941%;\"\u003eDemolition Hammer Slotting and Channeling Chisel Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fff0f5;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 31.3059%;\"\u003e\u003cstrong\u003eShank Drive Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 68.6941%;\"\u003eCombination Round Hex \/ Spline Slotted Drive Standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #ffffff;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 31.3059%;\"\u003e\u003cstrong\u003eSlotting Head Cut Width\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 68.6941%;\"\u003e1-1\/8 in. (1.125 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fff0f5;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 31.3059%;\"\u003e\u003cstrong\u003eOverall Tool Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 68.6941%;\"\u003e15.0 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #ffffff;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 31.3059%;\"\u003e\u003cstrong\u003eBit Material Composition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 68.6941%;\"\u003ePremium Forged Heat-Hardened Alloy Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fff0f5;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 31.3059%;\"\u003e\u003cstrong\u003eCore Body Architecture\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 68.6941%;\"\u003eSolid Monoblock One-Piece Forged Structural Profile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #ffffff;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 31.3059%;\"\u003e\u003cstrong\u003eCountry of Forging Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 68.6941%;\"\u003eItaly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fff0f5;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 31.3059%;\"\u003e\u003cstrong\u003eProduct Mechanical Condition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 68.6941%;\"\u003eBrand New Factory Stock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #ffffff;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 31.3059%;\"\u003e\u003cstrong\u003ePrimary Application Scope\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 68.6941%;\"\u003ePoured Solid Concrete, Masonry Joint Repair, Utility Channeling, and Structural Brick Work\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fff0f5;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 31.3059%;\"\u003e\u003cstrong\u003eAssembled Product Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 68.6941%;\"\u003e1.65 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; line-height: 1.6; color: #333333; margin-top: 20px;\"\u003e\u003cspan style=\"background-color: #fff0f5; padding: 5px 10px; border-left: 4px solid #004b87; display: block;\"\u003e \u003cstrong\u003ePro-Tip:\u003c\/strong\u003e When cutting deep tracking channels with this 15-inch slotting bit, avoid driving the narrow chisel tip directly straight down at a hard 90-degree angle. Lean your spline chipping gun at an angled 45 to 60-degree pitch along your layout line. This lets the curved nose of the slotting tool act as a gouge, continuously rolling cracked concrete chips out of the trench track rather than packing fine stone dust into the base and trapping the bit head. \u003c\/span\u003e\u003c\/p\u003e","brand":"BOSCH","offers":[{"title":"Default Title","offer_id":52341969518903,"sku":"HS1821","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2274\/5945\/files\/Bosch_HS1821_1-1_8_Inch_x_15_Inch_Slotting_Tool_Round_Hex_Spline_Hammer_Steel_Heavy_Duty_Concrete_Masonry_Repair_Chisel_Channeling_Gouging_Bit.jpg?v=1780524447","url":"https:\/\/www.1toptools.com\/products\/bosch-hs1821-1-1-8-inch-x-15-inch-slotting-tool-round-hex-spline-hammer-steel-heavy-duty-concrete-masonry-repair-chisel-channeling-gouging-bit","provider":"1 Top Tools","version":"1.0","type":"link"}