Ask a veteran tyre fitter or workshop technician about their hands in cold weather. The white fingers, the numbness, the grip that is not what it was - that is hand-arm vibration syndrome, and it did not arrive in a dramatic accident. It accumulated, rattle by rattle, over years of impact guns, air ratchets, grinders and needle scalers. The Control of Vibration at Work Regulations 2005 put legal numbers on that accumulation, and HSE’s guidance makes clear who the rules are for: employers of workers who frequently and regularly use hand-held power tools, hand-guided powered equipment, or powered machines processing hand-held materials. That is a description of a truck workshop.
HSE’s brief guide names the injuries plainly: hand-arm vibration syndrome - HAVS - and carpal tunnel syndrome. HAVS attacks the circulation and nerves: fingers blanching in the cold, tingling and numbness creeping from occasional to constant, strength and dexterity draining until fine work - the split pin, the circlip, the small fastener - becomes clumsy. The cruelty of the condition is its latency: by the time the symptoms are undeniable, the damage is done, and it is largely irreversible. Prevention is the only treatment that works, which is why the regulations are structured around exposure control rather than injury response.
The regulations set two exposure values, and HSE states them exactly. The exposure action value is 2.5 m/s2 A(8) - the level at which employers should introduce technical and organisational measures to reduce exposure. The exposure limit value is 5.0 m/s2 A(8) - the level that should not be exceeded. The A(8) is the daily exposure, averaged over an eight-hour day, which is why the maths that matters is not “how vibration-heavy is this tool” but “how much of the shift does this tool spend in this worker’s hands”.
Those numbers convert regulation into management: measure or estimate the daily exposure per person per tool, and act at the action value - before the limit is anywhere near. The regulations allowed a transitional period for the limit value until 2010 for older tools; that grace is long dead, and the regime today applies in full.
HSE’s guide lays out the employer’s arc: assess the risk, control it, tell employees what they need to know, and run health surveillance. In a workshop the controls write themselves once you look. Technical measures first: low-vibration tools are a procurement decision, and the impact gun bought on vibration data rather than price is a control measure with a part number. Tool maintenance matters more than most realise - worn, unlubricated air tools vibrate harder and cut slower, extending trigger time on every job.
Then the organisational measures: rotate the high-vibration work so no one person’s A(8) climbs, schedule the needle-gun descaling across the week rather than into one miserable day, and keep hands warm - cold hands are not just a comfort issue when circulation is the battleground. Trigger time is the currency: everything that reduces it, from the right socket at hand to the vehicle positioned properly on the lift, is a vibration control wearing a productivity hat.
The guide’s fourth pillar is health surveillance, and it exists because HAVS is invisible until it is not. Regular, structured checking - questionnaires and, where indicated, referral - catches early symptoms while exposure changes can still protect the worker. The cultural problem is the technician who hides symptoms because the work is his identity: surveillance only works if the workforce believes reporting numb fingers leads to job redesign, not job loss. That belief is built by how the employer responds the first time someone speaks up.
Like every exposure regime, this one lives on paper: the risk assessment with its exposure estimates, the procurement and maintenance records for tools, the rotation arrangements, the training record, and the health surveillance files. When a former employee’s solicitor writes in five years later, those records are the business’s memory. The workshop that managed vibration properly but documented nothing will struggle to prove it managed anything at all.
Hand-arm vibration never makes the dramatic safety video. There is no single frame of the injury happening - just a man in his fifties who cannot feel a bolt head in January. The regulations gave workshops the tools to prevent it twenty years ago: two numbers, a control hierarchy, and surveillance. The only ingredient left is deciding the fitter’s hands are worth more than the cheapest impact gun.