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Rockler JIG IT® Undermount Drilling Guide

Lets you quickly and precisely drill all holes required to install Blum Tandem undermount drawer slides onto your drawer boxes.
Item #
94% of 100

In order to install your Blum Tandem drawer slides, each drawer box must be drilled with six precisely-aligned holes. Our Undermount Drilling Guide makes that process fast and easy. Simply lay the guide on its side and butt it up to the front corners to drill the smaller angled holes that accept the locking devices. Not only will the location be spot-on, but the 15° angle is also set. Your bit won't wander, and driving the screws is a cinch. To drill the 6mm holes in the rear of the drawer box, stand the Drilling Guide up on its legs and position it over the notch. The end result is a drawer box that clicks into place on the slides perfectly, every time.

(1) Rockler JIG IT® Undermount Drilling Guide
(2) 2.5mm Brad Point Drill Bits
(1) 6mm Brad Point Drill Bit
(2) Stop Collars
(1) Set of Instructions
More Information
Brand Rockler
Weight 0.4000
Tech Spec
  • Drilling Guide Material: Glass-Filled ABS with Hardened Steel Inserts
  • Drill Bit Type: Brad Point
4.7 / 5.0
58 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rockler JIG IT® Undermount Drilling Guide
I completed two drawers before I received this jig. Had to re-drill or expand the rear guide holes on both drawers because of slippage of twist drill and angle of holes for front mounts. The next two drawers were dead on for both and went in without any rework on both of them. Great aid and real time saver no matter how accurate you can measure.
October 16, 2019
1 week ago
Woodworking Experience:
Great product
I’ve used a different jig for the Blum drawer guides, this jig work just as good and it was less expensive. I would recommend this to anyone buying Blum tandem drawer guides.
September 29, 2019
1 month ago
Woodworking Experience:
Helpful jig for newer model slides
I got this on sale and it was well worth the price. It all went very quick with the new slides I got. I had a couple of older Tandem blumotion slides, and the screw placement is slightly different. One of the screws is the same but the second is closer to the first. I was able to use it by shifting it over, but just in case you are using older model slides (the orange pieces are narrower) you might be disappointed.
September 26, 2019
1 month ago
Woodworking Experience:
Rocker JIG IT
Easy to use, simple instructions
September 25, 2019
1 month ago
Woodworking Experience:
Everything you need for undermount Blum slides. Great value compared to Blum template
September 15, 2019
2 months ago
Worked flawlessly and was fast.
I had 18 drawers to install in the kitchen and and this little jig made that incredibly quick and simple. The best part is that it is small enough to fit nicely in my apron pocket and costs less with the bits and stops included than the Bluhm version without the bits. Using two drills for the different sized bits speeds up work vs swapping bits for every drawer.
July 9, 2019
4 months ago
Woodworking Experience:
It did it's job well.
The jig worked well. The instructions were easy to understand, and making necessary holes using the jig was much easier than it otherwise would have been.
June 7, 2019
5 months ago
Woodworking Experience:
Ease of use.
April 24, 2019
6 months ago
Woodworking Experience:
Looks great
I have not had an opportunity to use it yet but it came as it was suppose to. Watching videos on it, it looks as good as it. Is meant to be. Looking forward to using it.
April 18, 2019
6 months ago
Woodworking Experience:
Excellent Value
I am an English major, and I teach middle school. I am not a skilled woodworker by any stretch of the imagination. I like doing it, though, and I like learning how to do it. This jig is invaluable. Very simple to use. I had tried mounting drawer slides without it and... I needed this. Very quick, easy, and straightforward - and it works. Thanks!!!
March 29, 2019
7 months ago
Woodworking Experience:
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Browse 6 questions Browse 6 questions and 56 answers
Why did you choose this?
Rockler Store
It works just fine. Better than me measuring!
James K on Oct 4, 2019
Got new glasses, will use this until I can eyeball it again.
Garrett H on Sep 9, 2019
It works just fine. Better than me measuring!
James K on Oct 4, 2019
Help installation
Rory W on Sep 25, 2019
Got new glasses, will use this until I can eyeball it again.
Garrett H on Sep 9, 2019
chris b on Sep 3, 2019
ease of install
art s on Aug 19, 2019
To aid in installation of Blum undermount drawer slides
Robert E on Aug 12, 2019
Future use with blum tantem undermount slides
Curtis T on Aug 9, 2019
for blum glides
David L on Aug 7, 2019
to install slides
Hugh W on Jul 19, 2019
This jig makes mounting easier
Bill S on Jul 5, 2019
The bit set and Jig is less expensive than just part of the bit set from Blum
Chris P on Jun 18, 2019
Need precision mounting.
David B on Jun 15, 2019
To install slides
Vincent R on May 11, 2019
I purchased this particular one due to the pieces that it includes. Others I have found do not include the bits. I liked the fact I am getting all od the parts in one order.
Jeffery B on Mar 27, 2019
Complete kitchen drawer replacement project.
Mr. DIY on Mar 12, 2019
I am installing a set of drawers with Blum Undermount slides, and I want to use a Jig. This is the best set I could find.
Delon Whetten E on Feb 26, 2019
Is a good tool
Armando M on Feb 15, 2019
I am retrofitting some kitchen base units with full extension blum undermount slides.
Robert L on Jan 14, 2019
To make it easier to mount the slides.
Ray O on Jan 4, 2019
make my life easier when installing hardware , first time with making drawers.
Kenny H on Dec 1, 2018
I purchased this to increase accuracy and decrease production time
Chris P on Nov 11, 2018
Much faster and easier to install Slides on drawers!
Jim J on Nov 7, 2018
Help with accuracy and cleanliness of finished product.
Roy B on Sep 2, 2018
This just makes sense to me, after reading the reviews, I believe this will save time and improve accuracy
William H on Aug 28, 2018
Much better price than the Blum template.
Isaac H on Aug 20, 2018
Many good ratings, will see for myself.
Kent S on Aug 19, 2018
to have an efficient ,accurate jig for installing my Blum undermounts
ronald m on Aug 18, 2018
Needed in order to mount Blum Drawer Slides
John H R on Aug 14, 2018
Looks easier to use compared to the Blum jig.
Brett A on Aug 13, 2018
I use Blum for all my projects and this certainly seems fast and easy
Terry T on Aug 13, 2018
ensin w on Jul 5, 2018
Andrew S on Jun 21, 2018
To make installation of Blum Tandem undermount slides easier
Jack D on Jun 18, 2018
Off set shipping costs
S C S on May 14, 2018
Over a period of time I will be replacing 16 undermount drawer slides. Might as well start out properly and in a crafstmanlike manner.
Edward S on Apr 8, 2018
Better than the Blum and easier to use.
George W on Mar 5, 2018
James S on Mar 1, 2018
recommended at checkout
Pat W on Feb 23, 2018
To help me install the drawer slides more accurately
Mark D on Feb 19, 2018
Royal C R on Feb 12, 2018
Ease of use
Stephen S on Feb 4, 2018
Good tools, hardware and prices,excellant customer service
Henry B on Jan 19, 2018
The video demonstrating how to use the Undermount Drilling Guide and the Undermount Drawer Slide Jib sold me!
Terrie L N on Dec 20, 2017
For Blum Undermount drawer slides in red oak/cherry furniture.
James J on Dec 16, 2017
to make the installation easier
Rodney W on Nov 27, 2017
Accuracy and ease of use
Joe M on Nov 7, 2017
Misplaced my original
John R on Oct 12, 2017
No doubt worth it
John H on Aug 13, 2017
Great price and everything is included with the kit
Tom on Aug 8, 2017
Great price
Harold R on Aug 1, 2017
Help installation
Rory W on Sep 25, 2019
chris b on Sep 3, 2019
What is the jig's hole spacing for the locking device? Blum changed it from 25mm to 32mm, is this for the newer 32mm device?
MarkB on Feb 3, 2016
BEST ANSWER: It is for 32mm devices
Where can I order a wrench and extra screws?
Mike M on Mar 15, 2016
Will this work with the Blum depth adjustable locking device for inset applications?
Nick V on Jan 2, 2018
BEST ANSWER: I used the jig for Blum drawer runners for face frame 21" drawer slides. 5/8" side, rear tilt adjustable. The part number was 563H5330B. I don't know if these were depth adjustable devices.
will this work with other brand under mount drawer slides such as grass dynapro ?
Dan R on Feb 19, 2019
BEST ANSWER: I have no idea, Rockler should be able to answer that for you. If the description doesn't specifically mention that brand, I would not bet on it.
Does this jig work for the 563 (5/8" drawer side thickness) & 569 (3/4" drawer side thickness) drawer slides?
Dennis on Apr 3, 2017
BEST ANSWER: This jig will work for both wall thicknesses. The tool is seated against the inside wall of the drawer bottom. so the rear locking pin on the drawer slide is always in the same location regardless of box thickness.
Prop 65 WarningWARNING: Cancer & Reproductive Harm -

Prop 65 WarningWARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to