Forstner Extension Bar

3/8" Collar Extension Bar

The Planet Forstner Extension Bars are designed for use with the Planet Forstner bits. They are supplied with 3 grub screws and allen key.  Thanks to the very high-quality strong build and design, Forstner bits, even up to 4" in diameter, can drill deeper holes in your workpieces.

The Planet Forstner Extension Bars are machined from high-quality Steel. The one-piece design ensures the shank cant work loose from the socket.