Right-hand spiral-flute taper pin reamers pull chips out of a hole as they enlarge, finish, or shape it for a precise fit when installing taper pins into the hole. This helps prevent damage to the reamer and the workpiece. They are used for reaming blind holes and are suitable for reaming applications with interrupted cuts. Taper pin reamers have a 1/4" taper to the foot. These reamers are operated with a machine such as a drill press, lathe, or screw machine.

Straight-flute taper pin reamers push chips forward into the hole and are used to enlarge, finish, or shape holes for a precise fit when installing taper pins into the hole. They have a 1/4" taper to the foot. Straight-flute reamers are the most commonly used style of reamer. These hand reamers are held with a tap wrench, adjustable wrench, or vise and are slowly rotated to feed the reamers into the hole.

These taper pin reamers have helical flutes (also called high-spiral or fast-spiral flutes) that evacuate chips from a hole as they enlarge, finish, or shape it for a precise fit when installing taper pins into the hole. The helical flutes help reduce the size of the chips created during reaming and prevent chips from packing in the flutes. These reamers are operated with a machine such as a drill press, lathe, or screw machine. They have a 1/4" taper to the foot.