This SL 250 sleeve tool designed for concrete/wood. It features fast, one drill installation of concrete/wood sammys. It drill 1/4 inch hole in concrete using an sds 250 carbide tip bit or a hex receiver with a #250 carbide bit tip, install sleeve tool over bits, insert sammys nut driver into sleeves, insert concrete sammys into nut driver and drill into concrete.

Note: use with safety glass which is recommended accessory for on-site labor and staff rohs compliance warning: do not use in vibratory zone