Mainstester Screwdrivers


  • 2 sizes suitable for most applications
  • Smaller size has pocket clip
  • Hot forged blades
  • Handles made from high quality cellulose acetate
  • Ergonomic handle for secure grip
  • Magnifying window in handle ensures an excellent view of the illuminated display
  • Supplied with hanging clip


The voltage indicator is suitable for testing AC Voltages from 100v - 500v against earth

The metal part on top of the indicator must be touched to operate it and the earthing position of the user largely determines whether it lights up or not

Failure to light up therefore does not indicate with certainty that no voltage is present

Damaged mainstesters must not be used

Product Code Type Size mm Unit Qty Display Qty Quantity
241-010-005 INDIVIDUAL MAINSTESTER 3.5 x 52 1 Log in or apply for an account
241-010-010 INDIVIDUAL MAINSTESTER 4.0 x 120 1 Log in or apply for an account
241-010-025 DISPLAY OF 20 MAINSTESTERS 3.5 x 52 20 Log in or apply for an account
241-010-030 DISPLAY OF 20 MAINSTESTERS 4.0 x 120 20 Log in or apply for an account