Comparison : Item # MA24, 1/4" Hex Hole Saw Arbor Used for 9/16" to 1-3/16" Hole Saws
Item # MA34, 3/8" Hex Hole Saw Arbor Used for 9/16" to 1-3/16" Hole Saws
Item # MA35, 3/8" Hex Hole Saw Arbor Used for 1-1/4" to 6" Hole Saws
Item # MA35PS, 3/8" Hex Hole Saw Arbor Used for 1-1/4" to 6" Hole Saws - Pin Lock
Item # MA45PS, 7/16" Hex Hole Saw Arbor Used for 1-1/4" to 6" Hole Saws - Pin Lock