Ideal to write on rough or smooth surfaces and to also mark the deep holes, mina graphite universal d.mm.2,8 - automatic mechanism, metal button, pencil full of mina and sharpener included in the button.
T-BOND PRO.1 is an adhesion layer chemical certified for use in concrete cracked and non-cracked and masonry. The resin injection can be used in the holes, wet and wet water.