Type of processing

•  Finishing (6)
•  For door lock-case (3)
•  For joinery (1)
•  For lettering and engraving (1)
•  For trimming (1)
•  Roughing (5)

Type of spiral

•  Downcut / negative (5)
•  Upcut / positive (6)

B (cutting length)

• (no filter) 

  12 (5) 16 (1) 32 (1) 22 (4) 14 (2) 17 (5) 45 (3) 35 (3) 51 (1) 27 (3) 55 (2) 80 (1) 72 (2) 102 (1) 1/2” (1) 3/4” (1) 1-1/4” (1) 1” (2) 2” (1)

D (diameter)

• (no filter) 

  3 (4) 4 (5) 5 (4) 6 (4) 7 (1) 8 (3) 10 (3) 11 (1) 12 (3) 12.7 (1) 14 (2) 16 (2) 18 (2) 20 (2) 4.5 (1) 3.5 (1) 1/8” (1) 3/16” (1) 1/4” (2) 5/16” (1) 3/8” (1) 1/2” (1)

L (total length)

• (no filter) 

  60 (5) 50 (3) 70 (1) 80 (4) 100 (3) 76 (1) 125 (1) 150 (1) 140 (1) 110 (1) 120 (2) 2” (1) 2-1/2” (1) 3” (1) 4” (1)

S (shank)

• (no filter) 

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

Z

• 2 (5) 2 (2) 

  1 (2) 3 (2) 3 (1)

Rotation

• (no filter) 

  RH (3) LH (1) RH (1)