Bush Hammer Bits

A bush hammer bit (also called bushing bit or bush hammer tool) is a specialized attachment for rotary hammers that features multiple hardened teeth arranged in a grid pattern on a flat striking face. It is used for:

• Surface Texturing: Creating uniform roughened textures on concrete, stone, and masonry surfaces
• Anti-Slip Patterns: Roughening ramps, walkways, pool decks, and stairs for pedestrian safety
• Coating Preparation: Roughening surfaces to improve adhesion of plaster, tile adhesive, epoxy coatings, and waterproofing membranes
• Decorative Finishing: Producing aged, natural stone-like textures on concrete for architectural purposes
• Surface Keying: Creating a mechanical bond profile before applying new concrete overlays or renders

Unlike grinding or sandblasting, bush hammering creates a deep, uniform texture through percussive impact, making it ideal for structural adhesion requirements.

Tooth count directly determines the texture coarseness and coverage pattern:

16 Teeth (Coarsest):
• Deepest impact marks, most aggressive roughening
• Best for: Heavy-duty surface removal, thick coating preparation, structural keying
• Texture depth: 2–4mm
• Ideal when maximum adhesion is needed

20 Teeth (Medium-Coarse):
• Good balance between aggression and coverage
• Best for: General roughening, anti-slip ramps, floor preparation
• Texture depth: 1.5–3mm
• Most popular for construction applications

30 Teeth (Medium-Fine):
• Moderate texturing with good surface coverage
• Best for: Decorative finishes, medium roughening, walkway texturing
• Texture depth: 1–2mm
• Preferred for visible architectural surfaces

45 Teeth (Finest):
• Fine, dense pattern with uniform coverage
• Best for: Decorative stone aging, light surface prep, exposed aggregate finish
• Texture depth: 0.5–1.5mm
• Ideal for aesthetic applications where appearance matters

Rule of thumb: Fewer teeth = deeper texture for structural work. More teeth = finer texture for decorative/aesthetic work.

The two systems are designed for different scale applications:

SDS-Plus Bush Hammer Bits:
• Shank: 10mm diameter
• Head Size: Ø30–50mm
• Weight: 300–600g
• Machine: Compact rotary hammers (3–8 lbs / 1.5–3.5 kg)
• Best For: Residential projects, small to medium areas, detail work
• Productivity: 2–5 m²/hour depending on tooth count
• Typical Jobs: Bathroom/kitchen prep, stair texturing, small ramp areas

SDS-Max Bush Hammer Bits:
• Shank: 18mm diameter
• Head Size: Ø50–80mm
• Weight: 800–1500g
• Machine: Heavy rotary hammers (12–25 lbs / 5–12 kg)
• Best For: Commercial/industrial projects, large floor areas, bridge decks
• Productivity: 5–15 m²/hour depending on tooth count
• Typical Jobs: Parking garage floors, industrial slabs, bridge deck roughening

Cannot interchange: SDS-Plus bits will NOT fit SDS-Max chucks and vice versa. Choose based on your project scale and available equipment.

Bush hammer bits are effective on a range of hard mineral surfaces:

• Excellent Results:
• Poured concrete (all grades up to C60)
• Precast concrete panels
• Natural stone (granite, marble, limestone, sandstone)
• Concrete block and CMU
• Terrazzo flooring

• Good Results:
• Hard brick and engineering brick
• Cement render and plaster
• Concrete pavers
• Engineered stone

• NOT Suitable For:
• Wood or timber
• Metal surfaces
• Ceramic tile (will shatter)
• Glass
• Asphalt (too soft, teeth will clog)
• Lightweight foam concrete (will crumble)

For best results on natural stone, use higher tooth counts (30 or 45) to achieve a controlled, decorative finish without excessive material removal.

Step-by-Step Usage Guide:

1. Setup:
• Insert the bush hammer bit into an SDS-Plus or SDS-Max rotary hammer
• Set the hammer to HAMMER-ONLY mode (no rotation) — this is critical
• Never use rotation mode, as it will damage both the bit and surface

2. Technique:
• Hold the hammer perpendicular (90°) to the work surface
• Apply moderate, steady downward pressure — let the hammer do the work
• Move systematically in overlapping passes across the surface
• Work in grid pattern for uniform texture coverage

3. Speed & Pressure:
• Use medium impact energy setting if adjustable
• 2000–3500 BPM is optimal for most bush hammering
• Too much pressure = uneven texture and premature tooth wear
• Too little pressure = insufficient texturing effect

4. Safety:
• Wear safety goggles, hearing protection, and dust mask (N95 or P100)
• Use anti-vibration gloves for extended sessions
• Concrete chips will fly — clear the work area
• Take breaks every 15–20 minutes to reduce vibration exposure

5. Finishing:
• Vacuum or blow compressed air to remove loose debris
• Inspect coverage uniformity — re-work thin spots
• Clean the bit after use to prevent concrete buildup in teeth

Expected Lifespan by Material:

• Standard Concrete (C20–C30): 50–100 m² per bit
• Hard Concrete (C40–C60): 30–60 m² per bit
• Natural Stone (Granite): 20–40 m² per bit
• Softer Stone (Limestone, Sandstone): 80–150 m² per bit

Factors That Reduce Lifespan:
• Excessive pressure (let the hammer action work, don't force)
• Using rotation mode instead of hammer-only mode
• Working on extremely hard aggregates or exposed rebar
• Not cleaning concrete buildup from between teeth
• Tilting the bit at an angle instead of perpendicular contact

Factors That Extend Lifespan:
• Correct hammer-only operation mode
• Perpendicular contact with consistent pressure
• Regular cleaning between sessions
• Using appropriate tooth count for the job
• Allowing natural cooling — avoid overheating

When to Replace:
• Teeth are visibly rounded or chipped beyond 50%
• Texture quality becomes uneven despite proper technique
• Individual teeth are missing or broken off
• Bit produces dust instead of clean impact marks

Yes, we provide comprehensive OEM/ODM services:

Customization Options:
• Custom tooth counts and tooth grid patterns
• Custom head diameters and overall lengths
• Specific tooth materials (alloy steel or tungsten carbide)
• Private label branding (laser engraving, color marking)
• Custom packaging design with your brand identity
• Special surface treatments (black oxide, chrome plating, sand-blasted)

Minimum Order Quantities:
• Standard sizes with your branding: 500 pieces
• Custom specifications: 1,000 pieces per model
• Full OEM partnership: 2,000+ pieces

Lead Time:
• Standard sizes: 15–20 days
• Custom specifications: 25–35 days
• Sample delivery: 5–7 days

Quality Assurance:
• ISO 9001 certified manufacturing
• 100% hardness inspection on every batch
• Sample approval before mass production
• Material test certificates available

Yes, bush hammer bits are widely used to create anti-slip surfaces that meet or exceed common safety requirements:

Applications for Anti-Slip:
• Concrete ramps and slopes
• Pedestrian walkways and sidewalks
• Pool decks and wet areas
• Loading dock surfaces
• Stairway treads
• Parking garage floors and ramps

Texture Control:
• 16–20 teeth create aggressive textures for high-slip-risk areas (slopes >5°)
• 30 teeth create moderate textures for general walkways
• 45 teeth create fine textures for decorative anti-slip (indoor areas)

Advantages Over Other Methods:
• More durable than applied coatings — texture is integral to the concrete
• More uniform than acid etching or sandblasting
• No chemicals required — mechanical process only
• Can be applied to existing surfaces without demolition
• Long-lasting — texture does not wear off under normal foot traffic for 10+ years

For best anti-slip results, use 16 or 20 tooth bush hammer bits with overlapping passes at consistent pressure.