Shown from Left to Right: #11 #13 #14 #15 #16 are 1/4" diameter and #34 is a 3/16" Diameter.
all have 3/32" Shanks and approximately 1 3/4" length.
These are a Coarse Grit Ruby Burr
From Left to Right: #'s15, 20, and 19
#RC15 is 3/16" diameter; #RC20 is 5/32"#RC19 is a 1/8" diameter.
Made under strict quality control. 3/32" Shanks and approximately 1 3/4" length.
Fine Grit