Transcript Document

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Impact Driver V’s Screwgun
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Recommended drill speed into Steel Purlin
◦ 2400 – 2500 rpm max
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Recommended drill speed into Timber
◦ 1500rpm max
Comparison
◦ Screwgun max 2400 rpm
◦ Impact Driver 3200rpm!!!!!!
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Impact drivers are not designed for self
drilling screws, particularly into steel
Tips of self drilling screws are damaged
resulting in burn-out or will not drill
properly
Can damage or break threads into steel
purlins, resulting in severely reduced
holding power
Magnetic sockets will damage and remove
paint from the head of the screw
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Impact Drivers can crack or split the
protective galvanised coating, resulting in
premature corrosion of the screw.
Can overdrive fasteners particularly on pan
fixed products, creating dishing around the
fastener.
Do not have a clutch or depth locator to
reduce overdriving problems.
Can break the heads on pan fixed screws.
Extremely noisy when used particularly on
steel.
Require Hearing Protection when used.
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Hylton Parker Fasteners will NOT warranty
any Roofing & Cladding fasteners installed
with Impact Drivers.
All implied warranties or guarantees on H.P.F.
fasteners are null and void if Impact Drivers
are used for any installation.
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