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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:
96% 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
4.9 / 5.0
39 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
34
4
1
0
0
Good value for the price
Works as advertised
November 16, 2019
Purchased
3 weeks 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
1 month ago
Woodworking Experience:
Intermediate
Just What I Needed
Simple and perfectly precise.
October 30, 2019
Purchased
1 month ago
Woodworking Experience:
Intermediate
Quick
Quick and easy set up of many measurements.
October 29, 2019
Purchased
1 month ago
Woodworking Experience:
Intermediate
Wonderful tool
Wish I had this years ago. Significantly reduces the number of test cuts needed; sometimes only need one test cut to verify setting.
October 29, 2019
Purchased
1 month ago
Woodworking Experience:
Intermediate
Very Accurate!
Great measuring tool! Very impressed on how accurate it is.
October 28, 2019
Purchased
1 month 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
Rockler has quality tools.
Keith F on Nov 16, 2019
Christmas gift for someone.
James H on Nov 15, 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
Looks like an easy way to set up router table fence
Dennis C on Nov 3, 2019
wanted to try this. appears to be more for set ups.
nate on Nov 2, 2019
Wanted to try it
wayne a on Oct 31, 2019
Improve accuracy and reduce time to setup repeatable cuts
Zon B on Oct 31, 2019
I've been wanting a router gauge like this to set up the bits faster.
Andrew S on Oct 31, 2019
Looks very helpful
MIke G on Oct 30, 2019
To make it easier and faster to set up blades and bits
Terry G on Oct 28, 2019
Doing a lot of router work
Ray M on Oct 26, 2019
Looks very accurate and versatile.
Jim L on Oct 26, 2019
to make life easier
Doug O on Oct 22, 2019
I saw plans recently to build one of these, and although I like to build everything I don't have time, and this had a very reasonable price.
Jon on Oct 22, 2019
good reviews
Calvin C on Oct 20, 2019
To make more precise cuts
delbert flackmiller L on Oct 19, 2019
They are on my husband's Christmas list and we have bought several things in the past from Rockler and been really pleased.
H U on Oct 19, 2019
Hoping this will help far more than my fine print ruler and my constant misreads
RICK G on Oct 17, 2019
Makes it easier to measure to the center of a router bit.
marlin c on Oct 16, 2019
Going to use it with the router table that I built.
Bob on Oct 16, 2019
Saves time and is accurate.
Roxie B on Oct 15, 2019
Looks like this could save time and stress when setting up the router table for use.
Bobby Y on Oct 14, 2019
Looks like it will save me some time setting up my router
HARRY L JOHNSON J on Oct 13, 2019
Looks handy!
Steven F on Oct 13, 2019
Looks very handy and less time consuming.
richard c on Oct 13, 2019
Convenient
Dave P on Oct 13, 2019
For my router
Jay J on Oct 13, 2019
Looked handy
Phil G on Oct 12, 2019
Looks very useful
steve e on Oct 11, 2019
Looked like a useful tool
Jeff J on Oct 10, 2019
Looking for an easy way to make the setting in my router.
Angel L. G on Oct 9, 2019
looked to be a usefull addition to my shop
FRANK T on Oct 9, 2019
It will save me time and be more accurate.
D O on Oct 7, 2019
To help in setting up my router fence and router bit height. Should help to be more accurate when working.
Beverly N on Oct 7, 2019
Great features and great price (on sale)
Herman R on Oct 6, 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
Appears to be a very useful tool. Anxious to put it to work.
Oakley S on Nov 13, 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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