Possible Clues:

• "What goes around comes around"?
• Woodworking tool created by Tabitha Babbitt (1784-1853)
• Particularly cutting item not-iced at end of leaflet
• Power-driven tool
• Its effect at the cutting edge is due to revolutionary design
• Tabitha Babbitt's invention, approx. 1813
• Workshop tool
• Was party to content of forwarded letter for multiple recipients that's cutting
• Letter saying something cutting
• Carpenter's tool