$139.00 Each
In stock
The K4 Master System wraps all the versatility and ease-of-use of pocket hole joinery into one simple, intuitive jig.

Kreg Jig K4MS Master System

Item #
92% of 100
With a sturdy toggle clamp to secure your stock to the jig, and a large frontal clamping recess for securing the jig to the bench, you'll get perfect alignment every time. Thanks to the removable drill guide and portable base, you have the option of taking the jig to large work pieces and awkward locations or slipping it in your pocket for work on the job site. The material support stop guarantees perfect repeatability time after time, and the dust collection shroud aids in chip expulsion for faster, cleaner drilling. Adjustable for 1/2" to 1-1/2" thick stock in 1/8" incremental settings.


  • 3 tools in 1 - benchtop jig, portable contractor jig, repair jig with addition of spacer blocks to the bottom of drill guide
  • 3-hole drill guide w/hardened steel core-adjustable for 1/2" to 1-1/2" stock thicknesses in 1/8" increments
  • Material support stop swings out of the way for multiple holes
  • Glass reinforced nylon body
  • Wood chip relief-one relief hole for each drill guide hole keeps chips clear for faster drilling and less burning
  • Large clamping recess
  • Sturdy toggle clamp - easily adjusted
(1) Kreg Jig K4 Pocket Hole Joinery System
(1) Face Clamp
(1) Portable Base
(1) Drill Guide Spacer
(1) Material Support Stop
(1) Dust Collection Attachment
(1) 3/8" Stepped Drill Bit
(1) 6" Square Driver
(1) Starter Screw Set
(1) Starter Plug Set
(1) Detailed Instruction Manual
More Information
Brand Kreg
Manufacturer Part Number K4MS
Weight 5.8000
Tech Spec No
Tech Docs No
Type Concealed
4.6 / 5.0
69 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Kreg Jig K4MS Master System
You can't beat this system for using pocket holes. It makes everything really easy. I wouldn't trade mine for anything.
July 8, 2018
over 3 years ago
Woodworking Experience:
Best buy ever !!!
Very easy to use and make solid joints!!!
June 3, 2018
4 months ago
Woodworking Experience:
Works very well
February 27, 2018
7 months ago
I would recommend
February 26, 2018
7 months ago
Woodworking Experience:
Very quick and effective. Used to use dowel joints. This system is superior in speed & strength.
October 26, 2017
11 months ago
Woodworking Experience:
I am just getting started with using it but like what I have done so far.
July 15, 2017
1 year ago
Well made equipment
April 21, 2017
1 year ago
Woodworking Experience:
Excellent Product
This is a FANTASTIC tool! My only problem was that the drill bit that came with it broke almost immediately. I had another one from my original smaller portable Kreg so it was not really an issue. I would absolutely recommend this tool to any woodworker...hobbyist or pro. A must-have!
April 13, 2017
1 year ago
Woodworking Experience:
Love this kit!
Kreg did it again, this pocket hole kit is awesome. It's really easy to use both with the clamp base and with the portable guide. Setting up the hole depth is super easy with easy to read markings on the parts. Ever since I started using this jig my biscuit joiner rarely sees the light of day anymore.
February 25, 2017
Woodworking Experience:
Very nice tool!
Worked as advertised!
Impressed with the tool and the company from end to end.
February 2, 2017
1 year ago
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 5 questions Browse 5 questions and 57 answers
Why did you choose this?
Rockler Store
Needed an additional tool for cabinet production that made it easier and quicker.
robert w on Jul 9, 2018
Need to build a drawer box 5 times? Or more? And a bed frame to put it in? Turn a week project into a weekend project.
Vince Z on Dec 27, 2017
Needed an additional tool for cabinet production that made it easier and quicker.
robert w on Jul 9, 2018
Graduation Gift
Bob R on Apr 23, 2018
Need to build a drawer box 5 times? Or more? And a bed frame to put it in? Turn a week project into a weekend project.
Vince Z on Dec 27, 2017
it was asked for
melissa a on Dec 8, 2017
Friends recommendation
Ken N on Dec 6, 2017
Building a table needed a pocket jig, saw it on u tube.
Gary F on Sep 7, 2017
tried to do it without a guide. Doesn't work
Ferdinand G on Jul 18, 2017
Decided to upgrade from the hand held version as I drill a ton of pocket holes frequently, this model will save me a lot of time.
Janet T on Apr 12, 2017
Kevin B on Feb 9, 2017
only bought this from Rockler because I had a gift card to use
Dennis P on Feb 7, 2017
This will help
raz on Jan 11, 2017
Put together picture fram
Lynn Q on Jan 11, 2017
Quality proven product
John P on Jan 7, 2017
Built Bathroom vanity
Clark C on Dec 30, 2016
Have used it for several years and is great to have in my shop
Gman on Dec 7, 2016
I chose the Keg jig to make projects easier and more stabile.. I first used it to build my garage doors.
Greg M on Nov 28, 2016
I have a basic kit for Kreg but needed an upgrade
MIKE L on Aug 29, 2016
It has been on my shopping list for a while!
Casey S on Aug 29, 2016
T. O on Aug 28, 2016
Kreg is the best jig for all types of woodwork when securely joints. Easy to use.
Rick D on Aug 11, 2016
need a better jig the the R3 model
jon b on Jul 21, 2016
Kreg makes a good pocket hole system
Mike S on May 28, 2016
J J on May 2, 2016
Had some finish work to do
EDGAR C on May 1, 2016
For making hanging shelves and tool drawers
Johnny B on Apr 15, 2016
Saw demo on You Tube. Great for Stiles and Rails in cabinet and furniture work. A Great time saver for production projects.
Richard S on Mar 20, 2016
I use pocket screws frequently and this kit greatly eases set up and hole drilling.
William on Jan 13, 2016
Christmas gift from my wife. Ain't she smart?
Philip H on Jan 2, 2016
Improve/expand my woodworking talents
THOMAS S on Dec 30, 2015
Project needs.
Daniel V on Dec 30, 2015
My husband put it on his Christmas list.
Patricia S on Dec 23, 2015
Free shipping and clamp included
Jim F on Dec 18, 2015
I need it.
Al W on Dec 17, 2015
Had prior Model. Works fantastic.
Ron B on Dec 13, 2015
Know Kreg to be a quality brand and I have projects suited to pocket hole joinery
Scott F on Dec 9, 2015
item was requested by my husband
Anne B on Nov 30, 2015
I purchased one of these systems for myself and was so taken with the quality and ease of use I wanted to get one for my son-in-law.
Paul C on Nov 30, 2015
Gift request
Christie H on Nov 30, 2015
Upgrading from single unit that I now have.
Michael R on Nov 29, 2015
Gift for my husband.
Elsa M G on Nov 27, 2015
Good reviews and feedback from one neighbor for the Kreg system. This package included additional items for a lower price than ordering them separately.
Jorge S on Nov 27, 2015
Love it and use it all the time, actually have two.
Miguel C on Nov 27, 2015
Good reviews
Steve G on Nov 26, 2015
It appeared to be easy to use.
Fred H on Nov 22, 2015
Alexander L on Nov 9, 2015
Building some frames; wanted to try this method to speed up the process.
James F on Nov 8, 2015
20% off coupon, figure I can make this work just as well as newer K5 jig.
Randal E on Nov 8, 2015
saw a video and decided to use it for box or cabinet making.
lorenzo M on Nov 5, 2015
gift for woodworker
JAMES M on Nov 2, 2015
CHARLES M on Oct 31, 2015
Graduation Gift
Bob R on Apr 23, 2018
it was asked for
melissa a on Dec 8, 2017
Does this come with a project booklet?
Janice W on Dec 13, 2015
BEST ANSWER: I believe mine came with a dvd but I watch different videos on you tube and this thing is worth its weight in gold
I am going to build a kitchen table using 4x4 for legs and 2x4,6 for top What is the difference in the 4 and 5 jigs. Which should I buy?
Melvin V on Nov 13, 2015
BEST ANSWER: Both would work. The 4 has the clamp in the back and the 5 is in the front. So, it is really a preference/convenience thing. When you buy the kits, they do come with different accessories.
Can you add dust collection port to one without it included?
Melissa W on Dec 22, 2015
BEST ANSWER: This is a small, but very useful "hand tool," and the only "dust" generated is the thin spiral that follows the drill bit twist. One might get a small pile of shavings after a while, but barely enough to brush away once or twice.
I am going to build a kitchen table using 2x4 . Which jig do I need 4 or 5 for holes ?
Melvin V on Jul 8, 2015
BEST ANSWER: Tough to answer not knowing your table design. If you are referring to the number of screws per joint, I would think 4 should be sufficient.. Again, all depends on your design.
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