Union Butterfield® Taper Pin Reamer, Series: 4588, 5-15/16 in Overall Length, Straight Shank, 11/64 in Shank Diameter, 3 Flutes, Helical Flute, 1-11/16 in Flute Length, HSS, Bright, Right Hand Cutting Direction, Applicable Materials: Ferrous/Non-Ferrous Metal

• High speed steel provides good wear resistance and can be used in general purpose applications
• Helical flute reamers are used for reaming taper pin holes in blind and through hole operations. these flutes are designed with a high spiral construction for reduced chip packing
• Designed to convert a straight hole into a tapered hole into which standard taper pins will fit
• Ideal geometry for the machine reaming of pin holes on a production basis

• https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/Union_Butterfield_5011157_Catalog.pdf https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/Union_Butterfield_5011157_Catalog.pdf