Type of processing

•  Finishing (5)
•  Roughing (2)

Type of spiral

•  Downcut / negative (7)
•  Upcut / positive (14)

B (cutting length)

• (no filter) 

  12 (5) 16 (1) 32 (1) 22 (3) 14 (2) 17 (5) 45 (3) 35 (4) 27 (1) 55 (2) 72 (1) 102 (1) 1/2” (1) 3/4” (1) 1-1/4” (1) 1” (1) 2” (1)

D (diameter)

• (no filter) 

  3 (5) 4 (5) 5 (4) 6 (4) 7 (1) 8 (4) 10 (5) 11 (1) 12 (3) 14 (2) 16 (2) 18 (2) 20 (2) 4.5 (1) 3.5 (1) 1/8” (1) 3/16” (1) 1/4” (1) 5/16” (1) 3/8” (1) 1/2” (1)

L (total length)

• (no filter) 

  60 (3) 50 (3) 70 (3) 80 (6) 90 (2) 100 (3) 115 (2) 110 (1) 120 (1) 165 (1) 130 (1) 2” (1) 3” (1) 4” (1) 2-1/12” (1)

S (shank)

• (no filter) 

  10 (1) 12 (1) 6 (1) 8 (2)

Z

• 2 (6) 2 (1) 

  1 (2) 3 (6) 1+1 (3) 2+2 (4) 3+3 (3)

Rotation

• (no filter) 

  RH (5) LH (1)