Aligning Reamers
ries-drills-cutting-tools-reamers-aligning-reamers

HSS Spiral Flute Aligning Reamer, Fractional Sizes (USA)
(14)1/2" Straight Shank with 3 Equal Flats to Fit 1/2" Chucks
Uses to align existing holes prior to rivet or bolt installation The point is tapered to allow entry to overlapping holes. They are also useful in portable reaming.

HSS Hex Shank Aligning Reamer, Fractional Sizes (USA)
(4)Left Hand Spiral Flute
/Asset/3498-hex-style-shank-aligning-reamer.jpg