Broach Cutters
Last updated on
Tuesday, September 19, 2023 08:45:36 PM
Mountain US Time Zone
Broach Cutting Set, Broach Holder & Shim, Bushing, Cutting
Broach Cutting Set
A
duMont broach cutter
Precision Set 00.
There are 15 different combinations
for making small keyways & bores.
Set consists of three broaches that
cut 1/16", 3/32" & 1/8"
wide key
ways &
five, Type A collared bushings for 1/4",
5/16", 3/8", 7/16" & 1/2″
diameter holes.
The L-shaped shim is inserted after the
first pass to increase the depth-of-cut.
Use plenty of cutting fluid & remove all
chips after each pass.
Key & Keyway Sizes
Larger broaches. 3/16"-B
cutter with its 5/8"-B collared
bushing. The 2nd one is a 5/16"-C cutter with a
standard
1-3/16"-C collared bushing & a 30mm-C collared
bushing
that is sized for the Jet
BD-920N lathe spindle pulley.
The various bushing Types (A, B, C) match the broach
cutter base size with a
corresponding bushing channel.
Each longer tooth cuts the
notch
progressively deeper as
it is pressed through the part.
https://www.youtube.com/watch?v=yHuwBwmV1OE
1-13mm
drill chuck mounted on a center
bearing &
MT2 arbor for use in the tailstock.
Can be used for rotary broach cutting, too.
Broach Holder & Shim
An adapter was made to hold
the
broach
cutter to prevent breakage.
The holder has four, shank-gripping
set screws (like a
4-jaw chuck).
A fifth set screw, inside the (smaller)
1/2" diameter end,
limits shank depth &
movement under cutting pressures.
I use it in the floor drill
press.
Making a 3.25"
cross-slide
knob for the Jet 9x20 lathe.
Precision
reamed 5/16" hole.
Bushing
A 5/16" guide bushing inserted into the hole.
Cutting
A 1/16" broach cutter held in the
floor drill press.
Use
ample amounts of cutting fluid.
Perfect broach-cut 1/16" keyway
to match the Taig OEM
design.
Handle installed on the improved 9x20 lathe
cross slide
using extra Taig mill lead screw parts.
Broach Cutting Set, Broach Holder & Shim, Bushing, Cutting