1/4" HSS Taper Shank Straight Flute Chucking Reamer Live and 11/32 inch heads have

and 11/32 inch heads have 60-tooth ratcheting mechanisms

and the end of the handle flares out to prevent it from slipping out of your hand

Part Number: BIT-DEWSFC3/4-120

Part Number: 87CNNMB

1/4" HSS Taper Shank Straight Flute Chucking Reamer Live and 11/32 inch heads haveProduct Description High Speed Steel Chucking Reamers are designed for accurate reaming in most materials using all types of equipment including screw machines, turret lathes, drill presses, and machining centers. They are regularly pointed with a 45 chamfer. The straight flute design is recommended for most general purpose reaming. The right hand spiral flute reamer has the smooth, chatter free action necessary for fine finishes. It is recommended