Store Locator
$19.99 Each
In stock
QTY

Get Expert Advice

Return Policy

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
4.8 / 5.0
63 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
52
8
2
0
1
Got it quickly. used it to set a few bits and does the job easier than a ruler. reccomend it highly.
January 18, 2020
Purchased
4 weeks ago
Woodworking Experience:
Beginner
a good product
better then my battery powered gauge, because the battery is always dead on that one.
January 18, 2020
Purchased
4 weeks ago
Woodworking Experience:
Advanced
Very accurate and useful
I like this product for its ease of use and accuracy. It’s great for setting the height of my router bits. I recommend it.
January 12, 2020
Purchased
1 month ago
Accurate, good value and time saver
Saves much time in set up and is very accurate
January 6, 2020
Purchased
1 month ago
Woodworking Experience:
Intermediate
Very well made for the money. Makes set on table very simple and fast.
January 2, 2020
Purchased
1 month ago
Great Innovation
Only need to mark the center of where you want the bit to go now. So much faster and easier than trying to mark the outside and inside of a dado or dovetail key slot.
December 31, 2019
Woodworking Experience:
Intermediate
Excellent setup tool
The key to a good outcome in woodworking is accurate, repeatable setup. This tool is a fast and easy way to accomplish that. I’ve been doing it the hard way for too long.
December 29, 2019
Purchased
1 month ago
Woodworking Experience:
Intermediate
Useful for more than routher bit setting
Useful also for setting inside and outside measurements. Adjustable cursor a plus.
December 28, 2019
Purchased
3 months ago
Woodworking Experience:
Beginner
Router Bit Center / Depth Gauge
This is a helpful when setting up the router fence depth to align with a router bit and also setting up the height of the bit.
December 28, 2019
Purchased
1 month ago
Accurate
It works as advertised.
December 28, 2019
Purchased
3 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
A probable useful device I can use
Gary on Jan 18, 2020
Convenient to measuring both 1/4 inch and 1/2 inch plus the height of the router bit and ease of repeatable measurements. Just ordered and I sure hope it works.
James M on Jan 17, 2020
A probable useful device I can use
Gary on Jan 18, 2020
This looked like a useful measuring tool and would save setup time.
Ed S on Jan 17, 2020
Convenient to measuring both 1/4 inch and 1/2 inch plus the height of the router bit and ease of repeatable measurements. Just ordered and I sure hope it works.
James M on Jan 17, 2020
Description was concise and it appears very useful
Jerry M on Jan 17, 2020
I have found over many years that Rockler products provide quality & value.They have always met my expectations.Thank for providing excellent service.
David M on Jan 17, 2020
ease of rotor setup
Lawrence on Jan 17, 2020
TOO GET THE CORRECT DEPTH!
JAMES M on Jan 14, 2020
Looks like it will speed up set up time.
Mike P on Jan 14, 2020
function
Kenneth L. A on Jan 13, 2020
I need to use this to setup the rail/stile router bits as accurately as possible to build my new kitchen cabinet doors.
Travis Sharp L on Jan 13, 2020
looks neat
WILLIAM T on Jan 13, 2020
measuring on the router is always difficult this should make things easier
George W on Jan 13, 2020
This should speed with set up
Todd R on Jan 12, 2020
This will be a big help and save time
Roy W on Jan 12, 2020
Help set up my router bits on my router table. Height and reveals on profiles.
Wayne C on Jan 12, 2020
looked interesting and the price is right
Weston T on Jan 10, 2020
Liked the features
Pilgrim on Jan 10, 2020
easy setup
Dave on Jan 8, 2020
quicker set up
Don K on Jan 8, 2020
Needed an accurate and convenient way to route flutes.
RALPH A on Jan 7, 2020
On husband's wish list
Toni K on Jan 6, 2020
Best way to measure bit distance for a reasonable price.
Mark N on Jan 4, 2020
Looks like a very useful tool for quick router set up
Don on Jan 4, 2020
Seems like a good tool.
Matt e on Jan 3, 2020
Wanted to try it for router table set ups....looks like it “may” simplify and allow for consistent measurements.
James W on Jan 2, 2020
It's always a challenge to set the depth to the fence on my router table. I thought this would make it easier.
Gary C on Jan 2, 2020
I got tired of changing batteries in my digital depth gauge.
Anthony C on Jan 1, 2020
setting up a router is a pain in the neck - hopefully this will eliminate the pain
John B on Dec 30, 2019
My eyes aren't as good as they used to be so this seemed to be just what I would need to make accurate measures.
Dean S on Dec 30, 2019
I used my friend's and it really saves time on router fence, blade and cut height measurements as well as table saw blade depth eliminate multiple measuring tools.
papa G on Dec 30, 2019
I’ve been looking for a simple way to get this done
Paul L on Dec 29, 2019
Looks like it will make measurements for router bits and saw blades easier.
Joe k on Dec 29, 2019
Looks very handy
SANDOR K on Dec 29, 2019
For accurate setups
James T on Dec 28, 2019
Wanted to try this
Dennis L on Dec 24, 2019
On my wish list.
Gerald G on Dec 24, 2019
Curiosity, plus thinking it will minimize errors when routing.
Thomas J on Dec 24, 2019
Have no idea why, may help with setup.
John U on Dec 23, 2019
This Bit Center/Depth Gauge may be the best to come along since sliced bread. If you are working an Incra Router Table set-up measuring to the center of the bit and the other measurements it offers are spot on deals.
Bob K on Dec 23, 2019
I chose this tool to make fast and accurate set-ups. Also when making several parts with the same dimensions it insures accurate repeatability.
Joseph S on Dec 23, 2019
Design appears to be useful and will help with a challenge of accuracy on setting fence in ‘critical' design I often use.
William F on Dec 21, 2019
Bargan price. Multi functional.
John B on Dec 21, 2019
looks easy to use
Laura B on Dec 19, 2019
Time saver in both grooving and depth of cut settings.
James D on Dec 19, 2019
Wanted to make sure my measurements were accurate.
Tom on Dec 19, 2019
Make my measurements more accurate.
Harry N on Dec 18, 2019
Gauges help make the parts fit together easier
Mickael M on Dec 18, 2019
hoping it will make life easier.
SHEILA K on Dec 17, 2019
for router
Forrest on Dec 17, 2019
HUSBAND GOT NEW ROUTER TABLE - BOUGHT THIS FOR CHRISTMAS GIFT
MARILYN W on Dec 16, 2019
This looked like a useful measuring tool and would save setup time.
Ed S on Jan 17, 2020
Description was concise and it appears very useful
Jerry M on Jan 17, 2020
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.
WARNING: Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov/product