Type of spiral

•  Downcut / negative (1)
•  Upcut / positive (1)

B (cutting length)

• (no filter) 

  45 (2) 35 (2)

D (diameter)

• 11 (2) 

  22 (1) 25 (5) 50 (1) 1/8'' (1) 6 (1) 8 (2) 3 (13) 12 (1) 4 (15) 1/8” (1) 5 (12) 3/16” (1) 6 (18) 6.4 (1) 7 (3) 8 (32) 9 (1) 10 (33) 12 (34) 12.7 (3) 13 (1) 14 (16) 16 (27) 18 (17) 20 (21) 24 (1) 26 (1) 40 (1) 30 (1) 28 (1) 4.5 (2) 3.5 (2) 12.7(1/2”) (1) 1/8” (3) 3/16” (2) 1/4” (4) 5/16” (2) 3/8” (8) 1/2” (8) 5/8” (2) 3/4” (2) 1/32” (1) 0.8 (1) 1/16” (1) 1.6 (1) 3.17 (1) 9.8 (1)

L (total length)

• (no filter) 

  80 (2) 100 (2)