... blades. The housing features double rivets that provide added strength. End caps on the arms further protect the housing. The shovel ... .ft., 1/10, 1/100tape endhookOTRS1810200E026005200 ft.ft., in., 1/8 & ft., 1/10, 1/100tape endringOTRS18300027238300 ft.ft., in., 1 ... .ft., 1/10, 1/100tape endhookOTRS1810300E026012300 ft.ft., in., 1/8 & ft., 1/10, 1/100tape endring