The small reamer 5mm to 19mm (3/16" to 3/4") is useful to rustic furniture makers for back-tapering holes for through-tenon wedging. First-time Windsor chair makers will find the large reamer 5mm to 30mm (3/16" to 1-3/16") useful for tapering leg sockets. The bits are 85mm and 140mm overall length respectively with an 8mm hex shank. Designed for use in an electric drill, these tools may also be used in a traditional brace.

Please note, the reamer is a scraper, as opposed to a cutting tool. This video below from Lost Art Press gives a great intro in how to make the best out of this tool.

• Simple, twin flute, one-piece taper reamers
• Small reamer 5mm to 19mm(3/16" to 3/4")
• Large reamer 5mm to 30mm(3/16" to 1-3/16")
• 8mm hex shank