Bar BORIDE CS-HD 120grit 150x25x12mm

CS-HD series Boride stone, 120 grit, standard size - 152x25x12mm (6”x1”x1/2”). The average grain size in the sieving is about 120 microns. This is the coarsest roughing stone in the CS-HD series, it belongs to the Very Coarse category, and is designed for the initial stages of roughing when chamfering a new cutting tool, repairs (removal of notches and chips) and starting sharpening operations. It can be used as a starting block in the process of abrasive processing. The recommended grit size for the next CS-HD series Boride stone in the 120 grit stage is 150 grit (ANSI).
The Boride CS-HD series is one of the few whetstone series produced by Boride that is based on silicon carbide grit. The Boride CS-HD series has a medium-hard bond and, thanks to the silicon carbide abrasive grain, works equally well with both carbon and chromium, high alloy and powder steels. The Boride CS-HD series has extended recommendations for the hardness of machined steels from the hardest knife steels to fairly soft stainless steels.
The Boride CS-HD series works with both oil and water coolants, however, since the Boride CS-HD series of whetstones is not impregnated, i.e. the inter-abrasive space is not filled with a special composition that prevents the products of processing from getting stuck between the particles of the abrasive (loading). The lubricating fluid during operation penetrates into the stone. To improve stock removal performance and comfort, it is recommended to use low density cutting fluid, water, or specialized cutting fluid from Boride Bori-Lube, in this case, as a rule, it is preferable to oil. The leveling of the bar is carried out on glass, on silicon carbide powder. During operation and when cleaning from salting, the use of household detergents is allowed. The Boride CS-HD series machine equally well, both hard tool and carbon steels, and soft chromium steels. The Boride CS-HD range of whetstones includes whetstones with an abrasive capacity of only the roughing range of 120, 150, 220, 320, 400, 600, 800, 1000, 1200 grit in various form factors - 152x25x6mm (6”x1”x1/4” ), 152x12x6mm (6”x1/2”x1/4”) and 152x25x12mm (6”x1”x1/2”).