Professional quality

Three and five degrees

these are smooth around one half of their circumference

and three blades side by side on the other side

the 3 degree one is 3.75mm diameter at the tip it has a plastic handle

the 5 degree one is 3.4mm diameter at the tip, it has a wooden handle.

if you buy the pair note that the 3 degree one is the longer

of the two.

very nice

Budget Metal  reamers,

These aren't pretty, the machining is rough

but I've tested them and they work

They are the cheapest option made and I sell them

cheaper than anyone else so if you buy one and send me a snotty, arrogant

email criticizing them I'm just going to send a link to the stu mac ones

and suggest you become an ex customer

Tapers 

3 degree tapers 3mm to 13mm

5 degree taper

5mm to 16mm (5mm diameter at the thin end)