Hole Saws

From CoMakingSpace Wiki
Jump to navigation Jump to search


Hole Saws

Hole saw.JPG
Synonyms: bell saws, hole cutter bits; DE: Lochsägen,
Kreisbohrer, Dosenbohrer, Bohrkronen,
Topfsägen, Lochkranzbohrer
Type: bits/saws
Material: depends on type (wood, concrete or even metals)
Used with: drills
Location: drilling table
(wood workshop
Access Requirements: upon reading
Tutors: Lukas

Hole saws are drill bits that consist of a saw blade holder and a central pilot drill bit which determines the position of the hole. Often, interchangeable saw blades are locked on the holder one at a time.

If you need guidance without the pilot drill bit (e.g. when cutting around a hole that is already larger than the pilot drill bit, or if you need discs without a hole), try clamping a template cut with the same hole saw on top of your workpiece. [1]

We currently have a set of wood hole saws that can cut 44 mm deep and 26, 32, 39, 45, 51, 58 or 64 mm in diameter.

There is significant kickback when (mis-)using this tool, take the time do it right!

Proper Use

Put only a single saw blade into the holder when you want to use it!

Use a drill at relatively high speed but little pressure.

drilling speeds
max rpm
26 - 39 mm 1200
45 - 58 mm 1000
64 mm 800

No hammering drill can be used to saw holes.

Besides keeping the saws intact, please take personal safety precautions and wear safety goggles!

Past Issues

2018-3: the screw broke out of the aluminum blade holder - fixed by drilling/tapping a new hole opposite of it