{"product_id":"bosch-spline-drive-4-1-2-inch-wide-head-x-16-inch-scaling-spade-chisel-demolition-hammer-bit-heavy-duty-concrete-masonry-scraping-removal-tool","title":"Bosch Spline Drive 4-1\/2 Inch Wide Head x 16 Inch Scaling Spade Chisel Demolition Hammer Bit Heavy Duty Concrete Masonry Scraping Removal Tool","description":"\u003ch2 style=\"color: #004b87; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;\"\u003e\u003ca href=\"https:\/\/www.1toptools.com\/pages\/brand-bosch\" title=\"Link to the Bosch Tools homepage.\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2274\/5945\/files\/Bosch_Promtional_Logo.png?v=1772729021\" alt=\"Bosch Promtional Logo Logout\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/a\u003e\u003c\/h2\u003e\n\u003ch2 style=\"color: #004b87; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;\"\u003eStrip Large Surface Layouts and Peel Thick Scaling Layers Flawlessly with an Ultra-Wide Forged Spline Spade Chisel\u003c\/h2\u003e\n\u003cp style=\"font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; line-height: 1.6; color: #333333;\"\u003eClear expansive masonry boundaries and accelerate your surface preparation workloads with the professional-grade Bosch 4-1\/2 Inch Head Width x 16 Inch Spline Scaling Spade Chisel. Custom-engineered for industrial concrete remediation crews, commercial flooring removal teams, bridge deck restoration contractors, and general masonry demolition professionals, this heavy-duty wide-head scraper maximizes percussive efficiency across flat substrates. Standard narrow chisels patch through materials slowly, leaving uneven surfaces and stalling project timelines during extensive stripping tasks. This industrial-grade spade bit completely resolves those costly field bottlenecks by expanding the physical impact face to an impressive 4-1\/2 inches, allowing operators to lift large sections of aggregate, asphalt buildup, or stubborn surface scaling with every hammer cycle.\u003c\/p\u003e\n\u003cp style=\"font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; line-height: 1.6; color: #333333;\"\u003eForged from premier structural alloy steel, this durable one-piece tool benefits from an exclusive, proprietary thermal heat-treating process that tempers the core steel matrix to resist fracturing under punishing daily stress. The optimized wide-head spade configuration provides uniform energy distribution across the entire cutting margin, allowing you to slice smoothly beneath packed tile thinset, spalled concrete skins, heavy rust scale, and floor adhesives without digging inappropriately or binding in the substrate. Completed with a standard 3\/4-inch diameter combination slotted shank that locks mechanically into your industrial spline-drive rotary hammers or chipping guns, this high-performance scaling tool carries intense percussive shock straight to the working edge, ensuring rapid material removal and flat, consistent tracking 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\u003eUltra-Wide 4-1\/2 Inch Scraping Face:\u003c\/strong\u003e Extended spade profile provides a broad physical strike line to clear thinset, scale, and asphalt quickly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProprietary Heat-Treat Hardening:\u003c\/strong\u003e Advanced thermal matrix tempering ensures exceptional core steel durability and uniform wear resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMonoblock One-Piece Forging:\u003c\/strong\u003e High-stress solid alloy steel body design carries raw hammer impact waves cleanly without flexing or twisting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnti-Binding Wedge Alignment:\u003c\/strong\u003e Precision-ground blade relief angles enable smooth, continuous material peeling without stubborn jams.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Spline Drive Connection:\u003c\/strong\u003e Heavy-duty slotted 3\/4 in. diameter shank ensures total mechanical torque transfer inside commercial chipping tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Efficiency Surface Scaling:\u003c\/strong\u003e Built specifically to optimize hourly material removal rates during broad floor stripping, mortar clearing, and slab cleaning.\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 4-1\/2 in. Wide Head x 16 in. Overall Length Spline Scaling Spade Chisel Bit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"color: #004b87; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;\"\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width: 58.2143%; border-collapse: collapse; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; color: rgb(51, 51, 51);\" height=\"654\"\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: 30.7692%;\"\u003eSpecification Profile\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 69.2308%;\"\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: 30.7692%;\"\u003e\u003cstrong\u003eBrand Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 69.2308%;\"\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: 30.7692%;\"\u003e\u003cstrong\u003eProduct Classification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 69.2308%;\"\u003eWide-Head Scaling Spade Chisel\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: 30.7692%;\"\u003e\u003cstrong\u003eShank Drive Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 69.2308%;\"\u003eIndustrial Spline Standard Drive (Round Hex Compatible)\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: 30.7692%;\"\u003e\u003cstrong\u003eShank Diameter Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 69.2308%;\"\u003e3\/4 in. (0.75 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: 30.7692%;\"\u003e\u003cstrong\u003eChisel Head Blade Width\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 69.2308%;\"\u003e4-1\/2 in. (4.50 in. Effective Scraping Margin)\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: 30.7692%;\"\u003e\u003cstrong\u003eOverall Tool Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 69.2308%;\"\u003e16.00 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: 30.7692%;\"\u003e\u003cstrong\u003eTool Body Construction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 69.2308%;\"\u003eSolid Monoblock One-Piece Forged Profile\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: 30.7692%;\"\u003e\u003cstrong\u003eMaterial Formulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 69.2308%;\"\u003eHeat-Hardened High-Stress Carbon Alloy Steel\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: 30.7692%;\"\u003e\u003cstrong\u003ePackage Component Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 69.2308%;\"\u003e3.00 lbs\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: 30.7692%;\"\u003e\u003cstrong\u003ePackage Dimensions (W x H x D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 69.2308%;\"\u003e5.25 in. x 1.15 in. x 16.00 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: 30.7692%;\"\u003e\u003cstrong\u003eRecommended Tool Types\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 69.2308%;\"\u003eSpline Drive Chipping Hammers \u0026amp; Combination Rotary Hammers\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: 30.7692%;\"\u003e\u003cstrong\u003ePrimary Application Scope\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 69.2308%;\"\u003eConcrete Surface Scaling, Mortar Stripping, Masonry Cleaning, Brick Layer Chipping, and Asphalt Adhesives Removal\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 using an extra-wide 4-1\/2 inch spade chisel to strip thinset adhesive or concrete scaling, hold your spline hammer tool at an shallow 20 to 35-degree angle relative to the floor surface. Forcing an ultra-wide spade blade vertically into concrete at a sharp 90-degree angle will blunt the bevel edge instantly, pak stone fragments, and generate massive mechanical feedback that triggers tool clutch overrides instead of lifting material layers smoothly. \u003c\/span\u003e\u003c\/p\u003e","brand":"BOSCH","offers":[{"title":"Default Title","offer_id":52341929640247,"sku":"HS1826","price":129.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2274\/5945\/files\/Bosch_Spline_Drive_4-1_2_Inch_Wide_Head_x_16_Inch_Scaling_Spade_Chisel_Demolition_Hammer_Bit_Heavy_Duty_Concrete_Masonry_Scraping_Removal_Tool.jpg?v=1780524434","url":"https:\/\/www.1toptools.com\/products\/bosch-spline-drive-4-1-2-inch-wide-head-x-16-inch-scaling-spade-chisel-demolition-hammer-bit-heavy-duty-concrete-masonry-scraping-removal-tool","provider":"1 Top Tools","version":"1.0","type":"link"}