Hello, Coolford. Nice find!!! The No. 30 Spiral Ratchet Screw Driver is probably the easiest to find. The other 2 are more elusive, and are length specific to the No. 100 Tool Set. From the Yankee Tool Book ; No.11 Ratchet Screw Driver, with blade 6 in. long. No. 15 Ratchet Screw Driver , with finger turn on blade, with blade 3 in. long. Regards, Lou