Actually we send high speed burs for resharpening back to the
manufacturer of these burs who essentially re-cuts them.
For those interested, here is the current (subject to change)
price list for resharening high speed burs if you send them to
Sizes 1-18, $0.90 each
Sizes 19-30, $1.35 each
Sizes 31-34. $1.75 each
Solid carbide rotary files/inside ring burs can also be
resharpened for $2.10 or more depending on size.
GESSWEIN CO INC USA