Kreg K4MS Jig Master System

Featuring a removable drill guide for use with benchtop and portable bases, the Kreg Jig Master System is the ultimate pocket-hole jig, and a great choice for any woodworking enthusiast. For precision and accuracy, it offers 1/8-inch incremental settings for materials 1/2-inch to 1-1/2-inch thick and patented three drill guide fixed spacing on the drill guide. A dust collection shroud means no more woodchips, and the clamping recess allows you to use many different styles of clamps to secure your jig to the workbench. For peace of mind, the hardened steel drill guides are backed by a lifetime warranty.

Kreg LogoJig Master System
At a Glance:Removable drill guide for use with benchtop and portable bases

1/8-inch incremental settings for materials from 1/2-inch to 1-1/2-inch thick

Rear-mounted clamp design–rigidity and strength to keep workpiece in place

Comes with portable base, SkillBuilder DVD, carrying case, and more

Hardened steel guides with lifetime warrantyAt a Glance
Sturdy benchtop jig utilizing the benchtop base for high-speed production Pocket-Holes.
Contractor-grade jig for work on the road with the portable base. Three Tools in One
Thanks to its innovative Removable Drill Guide, the Kreg Jig Master System can be many tools at once. First, a sturdy benchtop jig utilizing the benchtop base for high-speed production pocket-holes, second as a contractor-grade jig for work on the road through use of the portable base, and finally as a high quality repair jig with the addition of spacer blocks to the bottom of the drill guide.

Serious Woodworking Tool with High-Quality Features
Between its solid clamp, large clamping recess, dust-collection attachment, material support stop, removable three-hole drill guide, and seemingly endless adjustability, this jig has it all. If you’re serious about owning the highest quality tools, look no further than the Kreg Jig Master System.

Sturdy Toggle-Clamp
The Kreg Jig Master System features the same reliable rear-mounted clamp design featured on the very first Kreg jig. It’s a proven design offering incredible rigidity and uncompromising workpiece hold-strength. Adjustments are as easy as releasing the lock-nut, and rotating to the correct setting.

In addition, the large clamping recess makes it easy to secure the jig to the workbench using Kreg’s multi-purpose face clamps or any common bar clamp or c-clamp.


Removable 3-hole drill guide. Three-Hole Drill Guide with Steel Core
The patented three-hole drill guide lets you make perfectly placed pocket-holes in a wide variety of material widths and thicknesses. Every Kreg drill guide features a hardened steel core that carries a full lifetime guarantee. The core shrouds the bit and supports the workpiece through 100% of the drill-stroke, resulting in minimal bit deflection, reduced tear-out, and a clean pluggable pocket-hole.

Durable Construction and Optimized Drilling Angle
The blue body of the every Kreg jig is made from a heavy-duty glass-reinforced nylon, a unique composite material that offers the resiliency and flexibility you need without sacrificing strength and durability. To increase driving efficiency and minimize the overall size of the pocket-hole to less than 1-1/2 inches, this system also features an optimized drilling angle.

Wood-Chip Relief Hole Extends Bit Life
The Kreg Jig Master System includes one wood-chip relief hole for every drill guide hole, designed to keep the drill bit clear of excess wood chips, minimize drill torque, increase the longevity of your drill bits, and allow you to complete a perfect pocket-hole in one plunge instead of three.

What’s in the Box
Kreg Jig Master System, face clamp, portable base, drill guide spacer, material support stop, dust collection attachment, 3/8-inch stepped drill bit, six-inch square driver, three-inch square driver, starter screw set, starter plug set, quick-start guide, SkillBuilder DVD, and carrying case.

Product Features

  • Removable drill guide for use with bench top and portable bases
  • Patented 3-hole drill guide allows you to make perfectly placed pocket-holes in a wide variety of material widths and thicknesses
  • 1/8-inch incremental settings for materials from 1/2-inch to 1-1/2-inch thick
  • Dust collection shroud helps reduce wood chips
  • Large clamping recess allows for many different styles of clamps to secure the jig to the workbench

3 thoughts on “Kreg K4MS Jig Master System

  1. The Fastest, Easiest Joinery Method If you do any kind of woodworking joinery, the Kreg will make your life easier.I have used this jig to build:- a crosscut sled for my table saw (.75″ birch ply)- walnut cabinets for my master bath (.75″ walnut, .75″ birch ply)- amp cabinet enclosure for a red-knob Fender twin (.75″ birch ply)- Speaker enclosure for another guitar amp (.75″ birch ply)- A bathtub surround for a whirlpool tub (1.5″ 2×4’s and 2×6’s, some 22.5…

  2. Kreg K4 Jig: Pocket Holes are Fun I will start by saying I am a complete beginner to woodworking. I only have a couple of power tools: Circular Saw, Jigsaw, Corded Drill. This Christmas (2010), I mentioned to my wife that I would like to do some woodworking, and she jumped at the chance for “cheaper” gifts. Now, I have a good long list of tasks to complete. I was worried about how I would learn joints fast enough to be able to build anything at a mediocre standard much less presentable for gifts. In comes the Kreg Jig. I…

  3. What are you geting for the price??? I recently received my Kreg Master Jig system after procrastinating a long time about the purchase. While my use has been minimal I do have some preliminary impressions.1) The Jig itself is very study and works quite will. The plastic was of a much higher grade material than expected and a little bit of assembly was required. Learning how to operate the tool couldn’t be easier.2) The case is ridiculously bad. We all know there are two type of handymen in this world the…

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