
The Sutton Tools 3.5mm Supabit impact drill bit is a HSS Co bit for general purpose drilling in metal, timber and plastics. Cobalt high-speed steel and a bright finish make it suited to the torque of an impact driver on everyday jobs.
Cobalt steel adds abrasion and heat resistance, helping the bit hold its edge through repeated holes in steel, hardwood and plastic. A handy 3.5mm size for pre-drilling and general drilling when working off an impact driver across mixed materials.
Sutton Tools 3.5mm Supabit Impact Drill Bit is designed for use with impact drivers, suitable for general purpose applications in metal, timber and plastics. It is crafted from cobalt high-speed steel (HSS Co), ensuring high abrasion and heat resistance. The 135 degree split point design minimises wandering during initial drilling for precision, and the 1/4 inch hex shank is tailored for compatibility with impact drivers.
It is a 3.5mm diameter drill bit.
General purpose drilling in metal, timber and plastics.
HSS Co, cobalt high-speed steel, for greater abrasion and heat resistance than standard HSS.
Yes, the Supabit range is built for impact drivers as well as conventional drills.
A bright steel finish.



