No. 3 Knife Handle with mm rule fits surgical blades 10 thru 15

Frazier Suction Tubes working length 4 3/4” – 6 French (2 mm)
Frazier Suction Tubes working length 4 3/4” – 7 French (2.3 mm)
Frazier Suction Tubes working length 4 3/4” – 8 French (2.6 mm)
Frazier Suction Tubes working length 4 3/4” – 9 French (3 mm)
Frazier Suction Tubes working length 4 3/4” – 10 French (3.3 mm)