Drill America DWRRTPH4 #4 High Speed Steel Helical Flute Taper Pin Reamer, DWR Series

Drill America DWRRTPH series Qualtech High-Speed Steel taper pin reamer. This tapered reamer turns a straight hole into a tapered hole into which standard taper pins will fit. The straight-flute reamers are generally used by hand while the helical-flute is designed for machine use. The square on the shanks of the straight fluted are suitable for holding in a tap wrench or vise. The helical-flute taper pin reamer has the geometry for reaming holes for tapered pins with a machine. The free cutting action at high speeds produces a good finish and minimizes chip packing in the flutes. 0.0611-inches short end and 0.0806-inches large end.

• High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance
• Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications
• Round shanks allow use with a wide variety of toolholding systems
• Available with helical flute
• 0.2071-inches short end and 0.2604-inches large end