■April 28, 1916. THE COLLIERY GUARDIAN. 831 The “HARDY” DRILL-SMITH A simple, durable machine for shanking and sharpening drill steels for use with “Hardy Simplex” & other hammer drills. « A A GREAT LABOUR SAVER If you are short of skilled smiths, you will be able to get over your difficulties with this outfit, and increase output. Repeat Orders wherever tried hitherto. —------- SOLE MAKERS : —— THE HARDY PATENT PICK CO. LTD., SHEFFIELD.