#4/0 SPIRAL FLUTE TAPER PIN REAMER#4/0 SPIRAL FLUTE TAPER PIN REAMER 5-105-004, .0869" DIA. OF SMALL END, .1142" DIA. OF LARGE END, 1-5/16" LOC, 2-5/16" OAL .0869" Small End Diameter, .1142" Large End Diameter, 1-5/16" Flute Length, 2-5/16" Overall Length. Spiral flute tapered pin reamers are built for machining in harder to machine material. Left hand spiral creates shearing action for smoother cutting and better finish than standard straight flute reamers. These reamers create tapered holes for the use of tapered pins. They are tapered 1/4" per foot and are made of High Speed Steel material. The point of each reamer will enter hole reamed by next smaller size.
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