Click to expand Tap to zoom Sigma Suction Cup for KERA-CUT by Sigma Sold out $66.95 | / SKU 51C2 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Sold out Sigma Suction Cup for KERA-CUT Suction cup suitable for SIGMA Kera-Cut and Kera-Flex 51C2 cutters 4 1/2 in diameter aluminum suction cup that can also be used on rough surfaces. It is able to effectively block tiles up to 110 lbs