Made in the 1970's and early 80's the MR240 series are notable for their relatively thick forgings with blackened flutes, not quite as graceful as some of the earlier sets, they are however immensely strong.
3/8" to 1" by eighths plus a matching 1-1/4" MR1066 centre bit and 5/8" countersink in a new auger roll complete with sharpening file.
