Quickie Cut 4 1/2 in (OD) x 0.035 in (T) 27 ZA Cut-Off Wheel has a flexible design. Quickie Cut 4 1/2 OD x 0.035 Type 27 Cut-Off wheel with arbor size of 7/8 is made of zirconia alumina for durability. 60-Medium grit wheel is designed to cut materials like iron/steel bar pipe line and stainless steel sheets/bars. • Diameter: 4 1/2 in. • Thickness: 0.035 in. • Arbor size: 7/8 in. • Abrasive material: Zirconia alumina. • Grit/Grade: 60 (medium). • Flexible wheel design for fast cutting and easy work penetration. • Recommended for ferrous metals: Angle iron iron/steel bar metal decking and cable pipe line stainless steel sheets and stainless steel bars. • May be used for high tensile steel and non-ferrous metals: Aluminum alloys copper brass bronze and titanium. • Sold as 25/Box.