Pilot Drills are designed to fit all styles of hole saws. They are primarily used to allow depth adjustment for hole saws.
Pilot Drill - Three Steps page 339
Three Step 1/4" Pilot Drills are designed to fit all styles of hole saws. Steps are ground into the shank to allow adjustment for different depth hole saws.
ITEM NO. SIZE (DIA. x LENGTH) DRILL POINT DESCRIPTION UNIT PKG.
HSPD-3S 1/4 x 4 118° Point 3 Ground Steps on Shank for Set Screws 10/12
HSPD-3SH 1/4 x 4 135° Split Point 3 Ground Steps on Shank for Set Screws 10/12
Pilot Drill - Three Flats page 339
Three Flat 1/4" Pilot Drills are designed to fit all styles of hole saws. Flats are ground on three sides to prevent drill from slipping in chuck and to allow depth adjustment.
ITEM NO. SIZE (DIA. x LENGTH) DRILL POINT DESCRIPTION UNIT PKG.
HSPD-3F 1/4 x 4 118° Point 3 Ground Flats on Shank (3 Sides) 10/12
HSPD-3FH 1/4 x 4 135° Split Point 3 Ground Flats on Shank (3 Sides) 10/12