Mortar Raking Diamond Blade – Premier P3-M 125X6X7X22.2 M. The P3-M mortar raking blade is 6mm wide and offers an economical solution in preparation for re-pointing brick and block work. EN13236: European Standard that regulates the safety requirements. ISO9001:2010 Quality Management System: Standard designed to help ensure organisations meet the needs of their customers. Make certain the blade is suitable for the material before cutting. Carry out a slight pendulum movement during cutting (forwards, backwards). Keep the maximum amount of diamonds exposed by regularly cutting into a highly abrasive material, such as a 3-Newton building block or soft sandstone.