A Bosch 3-piece SDS-Plus Bulldog self-sharpening chisel set arranged vertically against a white background, featuring a star-point twist chisel, a flat viper chisel with power ribs, and a wide flat tile scraping scaling chisel, all showcasing universal quick-change slotted SDS-plus shanks.
A close-up overhead product image highlighting the distinct cutting heads of the Bosch SDS-Plus Bulldog chisel set, emphasizing the twisted star point, the flat viper blade with self-sharpening ribs, and the broad chisel face engineered for rapid tile scraping and concrete breaking.
The retail packaging for the Bosch SDS-Plus Bulldog self-sharpening chisel set, showing the three chisels neatly stored inside a clear cylindrical plastic contractor tube with blue branding labels detailing performance features and kit contents.
An on-site construction image of an operator utilizing a Bosch cordless rotary hammer equipped with an SDS-Plus chisel and dust extraction shroud to chip away structural brick masonry, with a Bosch HEPA-ready dust extractor vacuum managing jobsite silica particles.
An action image demonstrating a worker using a Bosch rotary hammer and an angled flat scaling chisel with a dust attachment to strip up old hexagonal ceramic floor tiles and underlying hardened mortar beds quickly.
A macro detail shot of a Bosch self-sharpening star-point twist chisel fracturing a dense, stone-filled structural concrete slab to demonstrate high-impact demolition performance.
A macro shot showing a Bosch self-sharpening flat viper chisel digging into concrete rubble and stone aggregate, illustrating effective material removal and low-friction line chiseling.
A low-angle jobsite photo of a worker wearing leather gloves and boots operating a Bosch cordless demolition tool to break up a concrete foundation edge next to a portable Bosch cordless dust extractor vacuum.
Bosch Concrete Tool Accessories | Bosch WOC 2026 promotional video
A Bosch 3-piece SDS-Plus Bulldog self-sharpening chisel set arranged vertically against a white background, featuring a star-point twist chisel, a flat viper chisel with power ribs, and a wide flat tile scraping scaling chisel, all showcasing universal quick-change slotted SDS-plus shanks.
A close-up overhead product image highlighting the distinct cutting heads of the Bosch SDS-Plus Bulldog chisel set, emphasizing the twisted star point, the flat viper blade with self-sharpening ribs, and the broad chisel face engineered for rapid tile scraping and concrete breaking.
The retail packaging for the Bosch SDS-Plus Bulldog self-sharpening chisel set, showing the three chisels neatly stored inside a clear cylindrical plastic contractor tube with blue branding labels detailing performance features and kit contents.
An on-site construction image of an operator utilizing a Bosch cordless rotary hammer equipped with an SDS-Plus chisel and dust extraction shroud to chip away structural brick masonry, with a Bosch HEPA-ready dust extractor vacuum managing jobsite silica particles.
An action image demonstrating a worker using a Bosch rotary hammer and an angled flat scaling chisel with a dust attachment to strip up old hexagonal ceramic floor tiles and underlying hardened mortar beds quickly.
A macro detail shot of a Bosch self-sharpening star-point twist chisel fracturing a dense, stone-filled structural concrete slab to demonstrate high-impact demolition performance.
A macro shot showing a Bosch self-sharpening flat viper chisel digging into concrete rubble and stone aggregate, illustrating effective material removal and low-friction line chiseling.
A low-angle jobsite photo of a worker wearing leather gloves and boots operating a Bosch cordless demolition tool to break up a concrete foundation edge next to a portable Bosch cordless dust extractor vacuum.
Bosch Concrete Tool Accessories | Bosch WOC 2026 promotional video
BOSCH

Bosch Chisel Set HS143PK 3 Piece SDS Plus Bulldog Self Sharpening (Star Point Viper Flat Angled Tile Chisel Concrete Demolition Tool Storage Tube)

In stock
SKU: HS143PK
$28.29 USD

Description

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Bosch HS143PK 3 Piece SDS Plus Bulldog Self Sharpening Demolition Chisel Set

The Bosch HS143PK 3-Piece SDS-Plus Bulldog Self-Sharpening Chisel Set functions as a heavy-duty percussive demolition tool kit engineered to break concrete, score masonry, channel mortar, and strip ceramic tile thinset. Forged from heat-treated alloy steel, these 10-inch long chisels feature self-sharpening cutting geometries that deliver 30 percent longer service life and higher material removal rates than standard chisels. Outfitted with an SDS-Plus slotted quick-change shank for hammer-only demolition mode, this set includes a Star-Point twist chisel, a 3/4-inch Viper flat chisel with power ribs, and a 1-1/2-inch angled tile chisel to enable tile contractors and masonry crews to execute rapid surface preparation without blade wedging.

Best Used For:

  • Ceramic Tile & Thinset Removal: Lifting ceramic tiles, porcelain overlays, and stubborn mortar beds up to 40 percent faster using the 1-1/2-inch angled tile chisel.
  • Concrete & Masonry Fracture: Shattering concrete slabs, brickwork, and foundation footings without tool binding using the self-sharpening Star-Point twist chisel.
  • Mortar Channeling & Line Scoring: Chipping out mortar joints, scoring concrete lines, and cleaning structural seams using the 3/4-inch Viper flat chisel.

Key Performance & Safety Features

  • Self-Sharpening Blade Geometry: Custom cutting edge design sharpens continuously under friction to maintain high material removal rates throughout tool life.
  • Star-Point Anti-Wedge Twist Profile: Twisted point shape fractures concrete outward to prevent the chisel from jamming inside deep masonry cracks.
  • Viper Power Ribs: Structural ribs integrated into the flat blade sharpen the cutting edge while transmitting dynamic impact energy into target substrates.
  • Angled Tile Scaling Head: Broad 1-1/2-inch angled chisel blade slides under tile and thinset layers to pry up material without shattering tiles into tiny fragments.
  • Universal SDS-Plus Slotted Shank: Quick-change slotted shank establishes a zero-slip connection inside all SDS-Plus rotary hammer chucks.
  • Contractor Storage Tube: Rigid protective tube keeps chisel edges organized and prevents damage to surrounding gear inside tool bags.

What's Included

  • (1) HS1472 10-Inch Star-Point Twist Chisel
  • (1) HS1470 3/4-Inch x 10-Inch Viper Flat Chisel
  • (1) HS1465 1-1/2 Inch x 10-Inch Angled Tile Chisel
  • (1) Heavy-Duty Contractor Storage Tube

Technical Specifications

Brand Manufacturer Bosch®
Kit Model Identification OEM SKU HS143PK
Tool Classification Type SDS Plus Self-Sharpening Demolition Chisel Set
Shank Interface Connection SDS-Plus Slotted Universal Quick-Change Profile
Total Component Overall Length 10.0 in. (254.0 mm)
Viper Flat Chisel Blade Width 0.75 in. (19.05 mm)
Tile Scaling Chisel Blade Width 1.50 in. (38.1 mm)
Core Structural Metallurgy Premium Heat-Treated Forged Alloy Steel Matrix
Operational Rotary Hammer Setting Hammer-Only / Chipping Mode (Rotation Disabled)
Total Package Piece Count 3 Demolition Chisels plus Protective Packing Tube
Primary Target Substrates Concrete Slabs, Mortar Beds, Thinset, Ceramic Tile, Brick, Stone

Pro-Tip: Set your SDS-Plus rotary hammer strictly to "hammer-only" mode before engaging these chisels. When using the HS1465 angled tile chisel, keep the blade bevel facing down against the subfloor to leverage the angle, sliding cleanly under thinset without gouging plywood or concrete subfloors.