SATRA STD 465C De Mattia Type Chisel

When carrying out the Bennewart Flex test ref. STM 465 the standard requires a precision cut to be made throught he sample before testing. The increase in width of the cut is an indication of the likelyhood of failure of the sole unit.  This chisel is a De Mattia style and is appropriate for the test.  It is supplied complete with a certificate of conformity.  Please note a jig is available ref. STM 465J to hold the chisel whilst the cut is being made.