On-tool extraction attaches directly to the tool or work surface to capture dust at the point of creation. Choosing the right type is critical to performance, operator comfort and compliance.

Common on-tool solutions

• Angle grinders: full-coverage shrouds with brush skirts and adjustable depth for chasing and cutting.
• Cut-off saws: blade guards with extraction ports; add water suppression where appropriate.
• Rotary hammers and corers: hollow drill bits, suction-mounted heads or collars that seal to the surface.
• Sanders and planers: integrated dust ports; use backing pads with correct hole patterns to maintain airflow.
• Routers and circular saws for wood: close-fitting hoods and twin-port capture where possible.
• Breakers and scabblers: clip-on cowls with flexible skirts.

How to select

• Compatibility: match shroud diameter and collar type to the tool; avoid universal fittings that leak.
• Airflow under load: ensure the connected vacuum can maintain capture with the actual hose length and filter state.
• Filtration: M-Class as a minimum for mineral/wood dusts; step up to H-Class or H14 for respirable or carcinogenic dusts.
• Hose management: choose antistatic hoses to reduce shocks and clogging; keep runs short and free of tight bends.
• Durability and seals: replace worn skirts, O-rings and brushes to prevent bypass.

Set-up tips

• Start extraction before the cut and keep the shroud flat to the surface.
• Use steady feed pressure; lifting the guard vents dust.
• Empty bags early and use automatic filter cleaning if available to keep capture stable.
• For overhead work, consider a lightweight pre-separator to reduce filter loading.

Verification

• Do a quick paper test: with extraction on, present a strip near the slot; it should pull firmly.
• Use a handheld PM meter to compare background vs task levels; adjust shroud fit or technique first if high.

Practical takeaways

• Pick task-specific shrouds and ensure tight fittings.
• Size the vacuum by under-load performance and correct filtration class.
• Maintain seals, hoses and filters; small leaks undo good design.

Well-matched on-tool extraction is the backbone of construction dust control. Get the interface right, maintain it, and you will remove most of the problem before it spreads.