Alfa Tools HSPR70351 1/8 HSS Spiral Flute Pipe Reamer
Alfa Tools HSPR70351 1/8 HSS Spiral Flute Pipe Reamer
$16.81
Check on amazon

Taper Pipe Reamer - High Speed Steel 1/8-inch NPT Size, Spiral Flute 3/4-inch per Foot Taper, For reaming holes to be tapped with taper pipe taps 0.316 Small Diameter, 0.362 Large Diameter Quantity: 1 per Pack

Alfa Tools High Speed Steel Spiral Flute Pipe Reamer. 3/4-inch taper per foot. For reaming holes to be tapped with taper pipe taps.