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Rockler T-Slot Cutter Router Bit - 5/8" Dia x 3/16" H x 1/2" Shank

Item #
84% of 100

T-Slots allow jigs to be moved to any position needed on the track. Cuts slots to fit standard T-Slot Bolts.


  • First cut a 3/8'' groove with a router bit or dado blade.
  • Repeat the cut with the T-slot bit.

Note: This bit does not cut Universal T-Tracks or slotwalls. 3/8" Between Cutter & Shank.


More Information
Brand Rockler
Weight 0.1000
Tech Spec
  • Diameter: 5/8"
  • Cutter Height: 3/16"
  • Shank Size: 1/2"
Discountable Yes
4.2 / 5.0
68 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
T track bit
T track bit worked perfectly, clean cut
January 28, 2020
1 month ago
Woodworking Experience:
Worked very well for making custom router table fence parts.
Great bit for making T Tracks! Worked very well for making custom router table fence parts.
January 21, 2020
2 months ago
Woodworking Experience:
Well made bit
January 6, 2020
over 5 years ago
Woodworking Experience:
Great bit
I used this bit for making t-slots in the board i had to replace for the sled and it worked very well and easy to use, a great buy
November 10, 2019
over 3 years ago
Woodworking Experience:
Works great
Needed to make a new fence for my half lab jig. Just ran the saw blade down the line of the groove and ran the slot across the tTbit and my T bolts fit perfect
June 15, 2019
9 months ago
Woodworking Experience:
Better than expected
Used it to build a CNC wasteboard. Worked better than I expected!
May 3, 2019
10 months ago
Sharp smooth cut. Be sure to use a straight bit to make the channel first. I cut the channel on a table router, then use a hand held router with the t slot bit. The neck of the bit acts like a bushing so no complicated set up needed once you cut the channel where you want. Pay up for quality.
March 8, 2019
1 year ago
Woodworking Experience:
Grove cutter
Does a grate job in cutting sliding slots in the back board for the router table! Hope fully I will find other uses.
February 20, 2019
1 year ago
Woodworking Experience:
Worked like a dream.
February 14, 2019
1 year ago
Woodworking Experience:
Fair price for the quality
Quality bit as I would expect from rockler, however you get what you pay for, it's about double the cost of others however I need to use it quite a bit for upcoming projects.
December 16, 2018
1 year ago
Woodworking Experience:
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 6 questions Browse 6 questions and 10 answers
Why did you choose this?
Rockler Store
building a new router table fence
John W on Jan 21, 2020
to build my own fence system using the t-bolts.
Robert H on Oct 24, 2019
building a new router table fence
John W on Jan 21, 2020
Christmas present
Trenna B on Dec 12, 2019
to build my own fence system using the t-bolts.
Robert H on Oct 24, 2019
For table saw out-feed table T Track install
Christopher B on Jul 26, 2019
Using with T Bolts on jigs
Kelvin C on Jul 11, 2019
Want to make my own tee track
Bob G on Jul 2, 2019
Need to make a new sacrificial fence
Larry H on May 31, 2019
I ordered this bit to add more T-Slot capability to more applications and fixtures.
Randy S on Apr 21, 2019
To make jigs
Jon V on Apr 8, 2019
Building a router table on my table saw
chris h on Apr 8, 2019
new workbench table project
William S on Apr 1, 2019
Making the Wood Whisper Gaming Table
Stephen W on Mar 8, 2019
I am updating my workbench and wanted to cut some t slots for hold downs and such.
Matthew L on Feb 1, 2019
to make a taller face for my Rockler router fence.
Thomas C on Jan 31, 2019
It was the size I needed.
Jerry J on Jan 24, 2019
Marc Spagnuolo's Gaming Table project (and for jigs/fixtures)
Paul G on Jan 4, 2019
to make new sacrificial fences for Bench dog router fence
Tom B on Dec 4, 2018
Constructing Jigs
Mark C on Nov 26, 2018
quality/discount price
Robert R on Nov 24, 2018
Jig making.
Robert S on Nov 24, 2018
I wanted to make zero clearance router fences.
Lindsey R on Nov 22, 2018
David C on Nov 22, 2018
Needed to put t-slots in my CNC router wasteboard, and this provides the ability to do that without having a metal t-track there that could get eaten up when I go to deep ...
Johnny V on Nov 22, 2018
I am making jigs and needed this for the slots
Barbara J on Oct 13, 2018
to add slots to jigs
Dawn P on Sep 30, 2018
To replace broken bit used to create t-slot bolt slots for 1/4 & 5/16 t-bolts used for fixture adjustment.
James2 S on Sep 5, 2018
Making a hanging display rack for quilts. No room for aluminum t-slot, but needed the adjustability of sliding clamps.
John Carper on Jul 29, 2018
Needed to make several jigs for a project.
Charles G on Jul 22, 2018
I'm going to make my one T-slot components for my table saw and other shop tools
Ken I on Jun 7, 2018
Recommended by Chris at Third Coast Craftsman.
Keith S on May 18, 2018
coachraoul on May 10, 2018
repair Rockler table saw miter fence
Sam T on May 1, 2018
To create T-Slot hold downs for my jigs. I questioned whether this bit, which only cuts the base slot, or the Freud which cuts both the vertical and horz. cuts. I purchased this one as well as a 3/8" straight bit because I was concerned with too much waste material being generated. This will be safer.
MARC P on Apr 23, 2018
need to make higher fences for router table, since you don't sell any
Ralph B on Apr 21, 2018
Setting up a T-Track table.
Alan B on Apr 18, 2018
I intend to use it for making jigs.
Jon M on Apr 18, 2018
will use to make misc. jigs in my shop
Randall S on Mar 22, 2018
To complete a miter sled project
Gordon B W on Jan 22, 2018
for jigs
Dick W on Dec 19, 2017
for making throw away jigs
Mick on Nov 14, 2017
Just needed it?
Raymond C on Nov 2, 2017
JIM B on Aug 30, 2017
Tired of buying T-track
Jack W on Aug 26, 2017
to use where t-track would only be temporary
Emily G on Aug 16, 2017
Make more fences for Rockler router table
Adams R on Jul 23, 2017
Making new MDF adjustable sub-fence slides for my Bench Dog Pro-Fence on my Bench Dog router table.
Carl C on Jul 6, 2017
Need to Make t Slots for some clamps
Marcello B on May 15, 2017
Just to complete my router bit inventory
David K on May 9, 2017
To build a mobile work table
Anthony S on Apr 12, 2017
Needed it
BILL M on Feb 16, 2017
Christmas present
Trenna B on Dec 12, 2019
For table saw out-feed table T Track install
Christopher B on Jul 26, 2019
Does this bit provide a T-Slot compatible with 1/4" (1/4-20) T-Bolt? Is anyone using 1/4-20 hardware with this T-slot? Thanks for your help!
Brian on Jan 16, 2016
BEST ANSWER: It is sized perfectly for a 5/16 T-bolt. The first cut is a 3/8 inch slot cut with a dado blade or straight cut router bit. This groove is followed by the T-slot bit which cuts a 5/8 inch slot in which the T-bold bottom plate slides.
The T-bolt bottom plates aligns with the length parallel to the slot. Both the 1/4 inch and 5/16 T-bolts have the same width bottom it doesn't make any difference which of these two bolts are used as far as the bottom slot fit is concerned. Of course the 5/16 bolt fits the 3/8 groove with on 1/32 inch clearance on each edge and hence is more stable when sliding. The 1/4 inch bolt has 1/16 inch clearance on each edge so there is a little "slop" here. However it the bolt is intended to remain fairly stationary as with a hold down it shouldn't make a difference.
This cutter requires a 3/8" groove, but the groove in the t-slot of my Rockler router fence is 5/16". Why does this bit require a wider groove?
David K on Feb 21, 2016
BEST ANSWER: The rockler T track actually is 3/8's its cut to except 1/4 and 5/16th t bolts. Here is a link to the T Track specification. hope this helps.
Is this bit is made to cut the slot so the Rockler T Track can then fit into?
A shopper on Aug 26, 2015
BEST ANSWER: no, this is used to cut a t-slot into wood. A separate metal or aluminum track is not used in such applications.
Looking for a t-slot router bit for drawer bottom slots. Which should I buy?
Grizzlybare on Apr 19, 2016
BEST ANSWER: Drawer bottoms normally take dados, not t-slots.
why am I having trouble cutting a T-Slot in plywood? The bit jumps and gouges and even resets the bit in a different position.
John J on Jul 25, 2016
BEST ANSWER: I have only used it in plywood, and it cut really well. Be sure and follow instructions and cut a slot before using the T-slot cutter.
what is the overall length of this bit? thank you
jay s on Mar 23, 2018
BEST ANSWER: I'm sorry but I can not answer as when I ordered it ended up being on backorder for an undetermined time so I canceled the order.
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