Detailed Product Description Tuck Point Blade with Continuous Turbo BladeInner hole/Arbor: 20mm, 7/8"-/5/8", 7 ... for cleaning mortar joints. Item No.DiameterSegment widthSegment heightcontinuous turbo segmentinch/mmmmmmTP04CT4"/1006.4/8/107/10TP045CT4.5"/1156.4 ... , Economy, Universal.NOTE: TP07CT7P--Tuck Point blade with Continuous Turbo segments, dia7"/180, segment height 7mm, Premium quality.