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Rockler Router Bit Center/Depth Gauge

Quickly set your router table fence a precise distance from the center of the bit—also works as a depth gauge for bits and blades.

Item #
55010
Rating:
94% of 100

When setting up your router table or freehand router, there are two primary adjustments to make: the fence distance and the bit height. Our Center/Depth Gauge makes setting both easy and accurate. Just set the hairline indicator for the distance you need from the fence to the center of the bit, hook it onto the bit shank, then slide the fence over until it touches the gauge. To use it as a height gauge, simply set it at your bit height, lay the foot flat on the table and raise the bit until it touches the arm. Half-round notches let you register the gauge to the center of 1/4'' and 1/2'' shank router bits. Alternatively, you can use the ''depth'' portion to measure to the edge of the cutter, rather than the middle of the shank.

Features:

  • Easily set your router table fence a precise distance from the center of your router bit—ideal for routing dados and flutes
  • Also doubles as a height gauge for setting the heights of router bits and blades
  • Half-round notches register to the center of 1/4'' and 1/2'' shanks
  • Broad foot rests against router table fence, and is offset so the fence opening isn't a problem
  • Hairline indicator adjusts for dead-on accuracy
  • 12'' long steel ruler features metric and imperial measurements
  • Nylon-tipped knurled knob secures gauge without marring ruler
  • (1) Rockler Router Bit Center/Depth Gauge
More Information
Brand Rockler
Weight 0.5500
Tech Spec
  • Length: 12''
  • Ruler Material: Steel
  • Graduations: Metric and imperial
4.7 / 5.0
44 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
36
6
1
0
1
Works great
November 24, 2019
Purchased
1 month ago
Woodworking Experience:
Intermediate
Router Guage
Great tool. Love it
November 21, 2019
Purchased
1 month ago
Woodworking Experience:
Advanced
Good value for the price
Works as advertised
November 16, 2019
Purchased
1 month ago
Woodworking Experience:
Advanced
Nice Tool
This is a nice, inexpensive tool to make your router measurements more accurate.
November 15, 2019
Purchased
1 month ago
Woodworking Experience:
Intermediate
Time saver
I use this all the time. Such a time saver.
November 14, 2019
Purchased
1 month ago
Woodworking Experience:
Intermediate
Great multi purpose tool
nice quality product. i always enjoy tools that can used in a variety of ways and with multiple tools. after testing with multiple methods i’m comfortable with it’s accuracy and reliability. my only thought for improvement wouldn’t be for this model so much as a second smaller unit
November 10, 2019
Purchased
1 month ago
Woodworking Experience:
Advanced
Acc-u-RIGHT
I've only used this once, so far, to set the height of my table saw blade. I like that it's scale is easy to read, and the pointer is incredibly easy to set. I'l be using this a lot.
November 4, 2019
Purchased
1 month ago
Woodworking Experience:
Intermediate
Really is as good as Rockler claims!
Great tool, saves a ton of time getting close on table saw and router table. Actually might be the last guage I ever by.....well until i break it and need to buy a new one.....
November 4, 2019
Purchased
2 months ago
Woodworking Experience:
Intermediate
Just What I Needed
Simple and perfectly precise.
October 30, 2019
Purchased
2 months ago
Woodworking Experience:
Intermediate
Quick
Quick and easy set up of many measurements.
October 29, 2019
Purchased
2 months ago
Woodworking Experience:
Intermediate
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 5 questions Browse 5 questions and 58 answers
Why did you choose this?
Rockler Store
Easy set up for fluting, tenons, etc. can’t wait to use it all the time!
Linda S on Dec 4, 2019
new router bench looks useful save time
RUDY G on Dec 2, 2019
Easy set up for fluting, tenons, etc. can’t wait to use it all the time!
Linda S on Dec 4, 2019
I'm hoping this will make set up easier
Paul B on Dec 3, 2019
new router bench looks useful save time
RUDY G on Dec 2, 2019
Easier Setup of my router table
Craig N on Dec 2, 2019
Unique. Helpful.
David C Z on Dec 2, 2019
husband request
JANET M on Dec 2, 2019
Because I am lazy
Marcus S on Dec 2, 2019
Seems to be a useful product.
E K on Dec 2, 2019
Aging eyes, I need to improve my setup accuracy.
Jerrie S on Dec 1, 2019
It looks like a neat tool for setting up router bits. It will help with my and speed up my router set-ups.
Lawrence M. Jesseph J on Nov 30, 2019
Speeds up the “settings” process.
Marvin J on Nov 30, 2019
hopefully will speed up the process and my eyes when routing
Robert M on Nov 30, 2019
I needed it
ROBERT H on Nov 29, 2019
Trying to help make setup easier.
Timothy V on Nov 29, 2019
Looks handy, probably save me lots of frustration.
Zachary H on Nov 29, 2019
Browsing flyer, I found this tool and bought as stocking stuffer for Christmas.
Carol P on Nov 29, 2019
Because my husband circled it in your flyer
Sue M on Nov 29, 2019
The more help in getting things lined up at the router table the better as far as I’m concerned. Need every advantage and or assistance in getting things right as possible. This fits the bill!
JayResar on Nov 28, 2019
Needed one and the price was reasonable
Michael R on Nov 28, 2019
Seems like a good gauge and there are no batteries to worry about.
MICHAEL G on Nov 27, 2019
this will be a great aid for setting the fence up with the router bit.
Patrick M on Nov 26, 2019
Christmas gift.
Doyle H on Nov 24, 2019
I haven't tried it yet, but if it works as well as the description, my comment will be: Where has this been for the last 40 years!?
Leighton L on Nov 24, 2019
This should make adjustments for the router and table saw much more accurate and quicker
Randy S on Nov 23, 2019
need one
Kathleen H on Nov 23, 2019
Father specifically asked for this as a Christmas gift
Bethani K on Nov 22, 2019
If you’ve ever tried to gauge the distance to the center of a board on a Router you’ll understand the importance of this tool.
Robert B on Nov 21, 2019
to obtain exact fence setup
John L on Nov 20, 2019
Tired of using in-exact tape measurement
Bruce C on Nov 20, 2019
Requested as a Christmas gift by my woodworking son!
Bill on Nov 20, 2019
This looks like it will save time setting up router.
Randy Stamp A on Nov 20, 2019
Always guessing where the center is, Hope this removes that problem
DANIEL T on Nov 20, 2019
Rockler has quality tools.
Keith F on Nov 16, 2019
It looks like a nice addition to my routing table accessories. Knowing where the middle of a router bit in order to position the fence accurately is often hard just by sighting down the bit in the table. Plus the other features look inviting. The price is right. And the 20% off coupon I just received in the mail was the motivating factor to order now rather than later.
Steven M on Nov 16, 2019
Christmas gift for someone.
James H on Nov 15, 2019
Appears to be a very useful tool. Anxious to put it to work.
Oakley S on Nov 13, 2019
nice addition to my router table set up tool collection
Edwin W on Nov 12, 2019
With frequent use of the router table, the center/depth gauge allows accurate and easy setting of the fence for various tasks.
Charles A on Nov 11, 2019
Birthday present for my son. this was his special request. he buys a lot of Rockler products
Edward L on Nov 11, 2019
excellent design and function
William T on Nov 11, 2019
will help out greatly
Charles D on Nov 9, 2019
Anything that lets me do a better job quicker is capital!
Ed A on Nov 8, 2019
rockler has good products
Courtney S on Nov 7, 2019
This should make setting the depth of cut much faster on my router table
James M on Nov 7, 2019
See this device as a means to simplify setting my router bit position on my router table.
EARL B on Nov 5, 2019
Wanted to make set up quicker on my router table
Jay B on Nov 5, 2019
this should save time and repeatability of settings
Ken O on Nov 5, 2019
like it
charles w on Nov 4, 2019
Improve accuracy
Michael P on Nov 4, 2019
It looks like a quicker and more accurate way to align router fence.
Mark H on Nov 3, 2019
I'm hoping this will make set up easier
Paul B on Dec 3, 2019
Easier Setup of my router table
Craig N on Dec 2, 2019
Hi, does it have any magnets built in?
Randy F on Aug 18, 2019
BEST ANSWER: No, the foot and sidearm are plastic, with metal hardware and ruler. The metal parts will attach to a magnet but are not independently magnetic.
I seem to most often want to position the fence from the edge of the cut, not the center of the tool. Am I not seeing something important here?
Ed O on Aug 19, 2019
BEST ANSWER: diameter of the bit varies, center is always in the same place, add or subtract bit radius for edge of cut line
Is there a minimum distance this tool will measure? Can you set it to say, 1/64 from center?
Tim A on Aug 28, 2019
BEST ANSWER: the answer is 2 fold. No there is no minimum and yes you "could" set it @ 1/64th from center...however.
The gauge will go to flush or zero with the fence or table. The ruler markings are in 1/16th and millimeter increments except the first inch is in 1/32nds. The gauge has a flat edge for setting edge depth, along with the 1/4 & 1/2 hollows for center measures.
The cursor in the picture looks well back of the center. It also looks like it is adjustable. Does the center point have to be found and the cursor adjusted to center before the gauge can be used as intended?
Joe M on Aug 19, 2019
BEST ANSWER: If you look at the pictures, you can see the ruler starts at 0, but there's an offset from the fence measurement because of the foot that squares up with the fence. I would guess the offset of the cursor is set up to negate the offset of the foot.
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