Bosch Demolition Scaling Flat Chisels SDS Max Hammer Steels (Heat Treated Forged Alloy Ground Edge Concrete Tile Thinset Mortar Surface Scraping)

Bosch SDS-max® Hammer Steel Scaling & Flat Demolition Chisel Bits

The Bosch SDS-max® hammer steel scaling and flat chisel bits strip bonded flooring coverings, hardened thin-set mortar beds, concrete surface scale, and masonry joint excess across commercial concrete slabs and brick substrates. Engineered with precision-ground flat and wide scaling cutting edges forged from heat-treated structural alloy steel, these high-production demolition accessories lift surface materials smoothly without gouging the underlying structural base layer. Outfitted with an optimized shank-to-blade geometry that directs kinetic percussive energy forward while dampening vibration feedback to the operator, an anti-corrosion polished finish, and a standardized slotted SDS-max drive shank, they equip commercial flooring contractors, tile demolition crews, and masonry restoration specialists with high-speed surface remediation on heavy-duty rotary hammers and breakers operating in hammer-only mode.

Best Used For:

• Thin-Set Mortar and Tile Adhesive Scraping: Prying bonded ceramic floor tile, quarry pavers, hardened mortar beds, and mastic down to bare concrete slabs in commercial tear-outs.
• Concrete Surface Scaling and Formwork Cleanup: Chipping cured concrete spatter, form board seepage, and uneven bumps along foundation footings and poured retaining walls.
• Masonry Joint Alterations and Brick Cleaning: Clearing deteriorated mortar joints, knocking down excess block edges, and squaring masonry openings during structural renovations.

Key Performance & Safety Features

• Premium Heat-Treated Alloy Steel: Proprietary metallurgical thermal hardening prevents edge chipping and resists core fatigue under continuous heavy hammer impacts.
• Precision-Ground Scraping Edge: Engineered flat and wide blade profiles slide beneath surface coatings to provide maximum prying leverage without binding.
• Efficient Mechanical Leverage: Shallow angle profile pops bonded tile, thick mortar, and industrial floor coatings loose in broad sections to speed up jobsite clearing.
• Dampened Feedback Vibration: Optimized structural mass distribution sends striking force directly into the workpiece while minimizing shock transfer to the operator.
• Universal SDS-Max Fitment: Precision-milled slotted drive shank locks securely into all commercial corded and cordless SDS-max rotary hammers and demolition chipping breakers.
• Corrosion-Resistant Surface Treatment: Machine-polished exterior sheds abrasive concrete dust easily and resists rust during outdoor storage and transport.

What's Included

• (1) Bosch SDS-max® Hammer Steel Demolition Chisel Bit in User-Selected Model, Width & Length:
  • HS1911: 1" Width x 12" Overall Length SDS-max Flat Chisel Bit
  • HS1912: 1" Width x 18" Overall Length SDS-max Flat Chisel Bit
  • HS1929: 1" Width x 24" Overall Length SDS-max Flat Chisel Bit
  • HS1920: 1-1/2" Width x 12" Overall Length SDS-max Scaling Chisel Bit
  • HS1921: 1-1/2" Width x 18" Overall Length SDS-max Scaling Chisel Bit
  • HS1915: 2" Width x 12" Overall Length SDS-max Scaling Chisel Bit
  • HS1910: 2" Width x 16" Overall Length SDS-max Scaling Chisel Bit
  • HS1916: 3" Width x 12" Overall Length SDS-max Wide Scaling Chisel Bit
  • HS1917: 4" Width x 12" Overall Length SDS-max Extra-Wide Scaling Chisel Bit
  • HS1906: 1" Width x 16" Overall Length SDS-max Self-Sharpening Flat Chisel Bit

Technical Specifications

Pro-Tip: Maintain a shallow 20- to 30-degree scraping angle against the slab to let the wide blade slide smoothly under the mortar bed; driving the chisel too steeply can cause the cutting edge to bite into the subfloor concrete rather than lifting the topping material.