Kreg K4 vs 720PRO: Which Pocket-Hole Jig Should Beginners Buy?

Quick Answer

For most beginners, the Kreg Pocket-Hole Jig K4 is the safer first buy: it costs less, uses a proven toggle clamp, and lets you set material thickness in 3 mm increments. Choose the 720PRO if you want Automaxx dual-action clamping that adjusts automatically to material thickness and you plan to drill many pocket holes in 13 mm to 38 mm stock. The K4 rewards deliberate setup; the 720PRO rewards speed.

The Real Difference: Clamping and Setup

Both jigs drill pocket holes in material from 13 mm to 38 mm thick, but they get there differently. The K4 uses an industrial-grade toggle clamp and a built-in guide for quick drill bit setup, with customizable thickness settings in 3 mm increments. That means you manually match the jig to your stock before each change. The 720PRO uses Automaxx dual-action clamping technology that automatically clamps and adjusts to the proper material thickness, plus a patented quick set up drill bit and stop collar. If you switch between 13 mm and 38 mm material often, the 720PRO removes a setup step; if you build mostly with one thickness, the K4's manual adjustment is not a burden.

What You Give Up by Choosing the K4

The K4's lower price comes with trade-offs in convenience, not capability. You still get wood-chip relief holes that keep the drill bit clear of debris, onboard storage, and a durable impact-resistant polymer body. What you do not get is automatic clamping or the quick-set stop collar system. In practice, that means more time checking thickness settings and clamp pressure. The K4 also lacks the GripMaxx anti-slip clamping surface found on the 720PRO, so slick or rounded workpieces may need extra attention. Neither limitation stops you from building strong pocket-hole joints; they just change how much fiddling you do between holes.

When the 720PRO Earns Its Price

The 720PRO is the easiest to use, most innovative jig in this comparison for lightning-fast, surefire pocket holes, according to Kreg's catalog description. Its Automaxx clamping and quick set up drill bit and stop collar are the features that justify the higher price for beginners who will drill a lot of holes across mixed material thicknesses. If you are building a shop cart, a set of cabinets, or anything with repeated joinery, the time saved on clamping and setup adds up. If you are making one small project per month, that speed advantage is harder to feel.

A Kit Option That Changes the Math

The Kreg Pocket-Hole Jig K4 + 20V Ionic Drive 1/2" Compact Drill Project Kit bundles the K4 with a brushless compact drill. For a beginner who does not own a suitable drill, this kit can be more practical than buying a jig alone, because it pairs the jig with a drill that fits the task. The kit includes the same K4 features: customizable setup for 1/2" to 1 1/2" thick material, industrial-grade toggle clamp, built-in drill bit guide, and onboard storage. If you already own a drill, buying the standalone K4 or 720PRO is the better path.

Trade-Offs at a Glance

• K4: Manual setup, lower cost: The K4 uses a toggle clamp and 3 mm incremental thickness settings. You adjust it yourself, but you pay less and still get wood-chip relief holes and onboard storage. Best if you build with consistent material thickness and want to save money.
• 720PRO: Automatic clamping, higher cost: Automaxx clamping and a quick set up drill bit and stop collar reduce setup steps. GripMaxx anti-slip surface holds material in place. Best if you drill many holes across different thicknesses and value speed.
• K4 + Drill Kit: One purchase, two tools: The kit adds a 20V brushless compact drill to the K4. It costs more than the jig alone but solves the drill question for new woodworkers. Best if you are starting from zero tools.

Product Facts

• Pocket-Hole Jig 720PRO: Automaxx dual-action clamping technology automatically clamps and adjusts to the proper material thickness. You skip manual thickness adjustments when moving between 13 mm and 38 mm stock, which speeds up repeated drilling.
• Pocket-Hole Jig K4: Customizable setup for use with materials from 13 mm to 38 mm thick in 3 mm increments. You set the jig to your exact stock thickness, which suits beginners who work with one or two sizes and want predictable results.
• Kreg® Pocket-Hole Jig K4 + 20V Ionic Drive™ 1/2" Compact Drill Project Kit: Kreg Pocket-Hole Jig K4 + 20V Ionic Drive 1/2" Compact Drill Project Kit includes the K4 jig and a brushless compact drill. If you do not own a drill, this kit covers both tools in one purchase, though it costs more than the jig alone.

Which Should You Buy?

Buy the K4 if you...

• are a beginner on a budget who mostly builds with one or two material thicknesses
• want a proven, time-tested jig with manual control over setup
• already own a drill and want to keep the initial tool cost low

Skip the K4 and choose the 720PRO if you...

• regularly switch between 13 mm and 38 mm material and want automatic clamping
• plan to drill many pocket holes and want the fastest setup
• want the GripMaxx anti-slip clamping surface for slick or rounded workpieces