For determination of particle shape Flakiness Index & Elongation of Aggregates are suitable only for hand sieving. these are made using aluminium frames and stainless steel rods of 5 mm dia. and comply fully with EN933-3:1997. Make Labtest size slot width 50.0, 40.0, 31.5, 25.0, 20.0, 16.0, 12.5, 10.0, 8.00, 6.30, 5.00, 4.00, 3.15, and 2.50 mm (set of 14 pcs).