Tower bolt reamers are designed for lining up bolt holes on cell phone towers, wind mills, and transmission towers. They have three flats on the shank for use in 1/2" three jaw power tools and pneumatic equipment. The extra short length makes them more useful in close quarters.
HIGH SPEED STEEL - HELICAL FLUTE
Tower Bolt Reamers 360° view page 196A
tower bolt reamer
ITEM NO. SIZE SHANK DIA. DIA. AT POINT FLUTE LENGTH OVERALL LENGTH
9/16 1/2 13/64 1-39/64 3-1/2 TBR036
11/16 1/2 3/8 2-3/64 3-21/64 TBR044
13/16 1/2 15/32 2-59/64 4-51/64 TBR052