AASA
for General use
Length 130 mm / 5.12 in
OCSA
Fine-tipped
Length 90 mm / 3.25 in
2ASA
Round-tipped
Length 115 mm / 4.53 in
3CSA
for Miniature jobs
Length 110 mm / 4.33 in
5SA
Extrafine tip
Length 110 mm / 4.33 in
7SA
Curved
Length 120 mm / 4.72 in