Regrooving blades are used to cut new grooves into the tread of a tyre, which can help improve traction and extend the life of the tyre. Gerry Brown’s offers a wide range of regrooving blades, including W-1, W-2, W-3, W-4 and W-5 blades with cutting widths ranging from 3mm to 28mm and depths ranging from 7mm to 16mm.