Choosing the right tools and knowing how to use them can be difficult. Learn about reamers and the different types that are out there to ensure accuracy for your next big job!

1. YOUR GUIDE TO
REAMERS

2. A reamer is a drill
bit used to enlarge
or shape holes that
have been
previously drilled

3. There are various types of hand
and machine reamers. Choosing
the correct one can make a
significant impact on any job. Here
are a few of our favorites…

4. • Adjustable
• Multi-fluted
• Slightly enlarge holes to
a precise diameter
• Smoother finish
Hand
expansion
reamers

5. • Multi-fluted
• Enlarge previously formed
holes precisely and
smoothly
• Use with shell reamer arbor
• Recommended for large
holes of 3/4" diameter or
greater
Machine shell reamers

6. • Multi-fluted
• Used to resize and clean up
previously formed holes
prior to tapping
• Taper is 3/4" per foot
• Left-hand spiral
• Right-hand cut
Hand
tapered pipe
reamers

7. • Multi-fluted
• Used to enlarge previously formed holes
to a precise diameter with a smoother
finish
• Tapered shank are used in a Morse taper
socket toolholder in standard
portable/stationary machines
• Suitable cutting oils or appropriate
coolant fluids are recommended for most
reaming operations
Machin
e
bridge
reamer
s

8. • Used for resizing multiple hole
diameters
• Precise diameter with smooth
finish
• Blades move within tapered
slots by loosening the nut at
one end and tightening it at the
other
• Blades can be re-ground or
replaced
Hand
adjustable
blade reamers

9. • Multi-fluted
• Used to resize and refinish
previously formed holes to
fit standard taper pins
• Best economical choice for
shops producing taper pin
holes by machine reaming
• Left-hand spiral
Mach
ine
taper
ed
ream
ers