NOT to be used for rough or side grinding!. QuickTrenn cut-off wheels, 1 mm. High-quality cut-off wheels made of synthetic resin-bonded high-grade corundum, free of iron, chlorine and sulphur High cutting performance and service life, for use with normal and stainless steel Extremely quick cut with no heat discolouration Clean and burr-free, no need for rework 35% less force required than with standard wheels Bore diameter 22.2 mm