Drillco 4570E Series High-Speed Steel Taper Pin Reamer, Helical Flute, Round Shank, Uncoated (Bright)/Black Oxide Finish, 6 Size, 5-7/16" Length

Taper Pin Reamers are manufactured with a taper of 1/4-inches per foot. They are used to ream holes into which standard taper pins will fit. The point of each reamer will enter hole reamed by the next smaller size. Hole to be reamed should be a few thousands smaller than the small diameter of the finished reamed hole. Square shank allows hand (straight and spiral flute) reamers to be held in a tap wrench or vise, depending on whether the reamer of the part is rotated. High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance. Available in uncoated (bright) and black oxide finish. Round shanks allow use with a wide variety of toolholding systems. Helical flute style.

• High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance
• Available in uncoated (bright) and black oxide finish
• Round shanks allow use with a wide variety of toolholding systems
• Helical flute style
• Square shank allows hand (straight and spiral flute) reamers to be held in a tap wrench or vise, depending on whether the reamer of the part is rotated