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Tool review

Kreg Pocket-Hole Jig K4

Cody's hands-on owner review of his Kreg Pocket-Hole Jig K4 benchtop jig: specs, shop photos, benefits and honest limits.

Made in my shopUpdated

Safety first: read the safety notes before you use one.

Hands-on owner review of the Kreg Pocket-Hole Jig K4 I use on my own bench for pocket-hole joinery, not a multi-source "Our tool picks" page. Specs cite Kreg's K4 product page and owner's manual; shop photos are of my jig.

Cody's blue Kreg K4 pocket-hole jig on his bench with the toggle clamp and three-hole drill guide

Overview

The Kreg K4 is a tried-and-tested pocket-hole jig. The adjustments are manual, but it’s still quick to drill a pocket and reset for the next one. Adjusting is easy because the measurements are printed right on the jig: 1/2, 5/8 and 3/4 marks on the drill guide and a 1/2” to 1-1/2” scale for the clamp. It’s a solid jig for small shops and hobbyists, and if you run a bigger shop or high production, Kreg also makes auto-adjusting jigs.

Specs

From Kreg’s K4 product page, the K4 owner’s manual, and the markings on my jig.

Spec Value
Model Kreg Pocket-Hole Jig K4 (sold as K4B at Home Depot)
Type Benchtop pocket-hole jig, removable drill guide block
Drill guide 3 holes, hardened steel; 9/16, 7/8 and 1-7/16 in. spacing
Material thickness 1/2 to 1-1/2 in. in 1/8 in. steps (12–38 mm); 1/2, 5/8 and 3/4 marks on the guide block
Clamp Rear-mounted industrial-grade toggle clamp, adjustable pad with jam nut; clamp scale 1/2 to 1-1/2 in. on the base
Chip relief One relief hole per guide hole
Construction Glass-filled nylon, polymer and steel
Storage Onboard, under the base: stepped bit, stop collar, square driver
In the box Jig, stepped drill bit, 6 in. square-drive bit, stop collar, hex wrench, screw sample pack, manual
Size 10.75 in. long x 3.5 in. wide (Home Depot)
Mounting Screw to the bench or clamp down
Warranty Lifetime on the drill guide
Price $99.99 at Kreg (checked Nov 4, 2026)
A walnut board clamped upright against the drill guide of Cody's Kreg K4

Benefits

Close-up of the K4's three steel-lined guide holes, knurled lock knob and 1/2, 5/8, 3/4 thickness marks Underside of Cody's Kreg K4 with the stepped drill bit, stop collar and square driver stored in the base
  • Three holes, one clamping. With guides at 9/16, 7/8 and 1-7/16 in. spacing, I can put two pockets in a narrow rail or spread them on a wider board without re-clamping.
  • Thickness setup at a glance. The 1/2, 5/8 and 3/4 marks are molded right on the guide block and the clamp scale is on the base, so going from plywood to 3/4 hardwood takes a knob turn and a clamp-pad adjustment.
  • Steel guides. The guide holes are hardened steel with a lifetime warranty, so the bit runs true and the plastic body doesn’t wear out around it.
  • The toggle clamp holds. Once the pad is set, the rear toggle locks the board tight against the guide while I drill.
  • Everything lives on the jig. The stepped bit, stop collar, and square driver clip into the underside, so they stay with the jig between projects.
  • Chip relief. The relief holes under the guide clear chips so I can drill each pocket in one plunge.

Honest limits

The K4's rear toggle clamp, threaded clamp rod and pad, and the clamp scale molded into the base

What works well

  • Hardened-steel 3-hole guide with a lifetime warranty
  • Strong rear toggle clamp
  • Thickness marks and clamp scale right on the jig
  • Bits stored onboard

Tradeoffs

  • The clamp is manual. When I change stock thickness, I loosen the jam nut and rotate the pad before the toggle grips right. Kreg’s newer 720 adjusts itself, but the K4 doesn’t.
  • Two settings to match. The guide-block height and the bit’s stop collar both have to match the stock. If either one is off, the pocket comes out wrong.
  • Clamp-pad wear. Some owners on Kreg’s page report the rubber clamp tip breaking down over time. Kreg sells the replacement toggle clamp (NK3066).

Bottom line

If you want a benchtop pocket-hole jig for cabinets, face frames, shelves, and furniture, the K4 is a proven pick. You get a three-hole hardened-steel guide, a strong toggle clamp, settings for 1/2 to 1-1/2 in. stock, and the bits stored on the jig, all for about $100 (checked Nov 4, 2026). If you change stock thickness constantly and hate adjusting the clamp, look at the 720 instead. Whatever you use, clamp the work, set the stop collar to your stock, and wear eye protection.

Where to buy

Plain store links, no affiliates. Checked November 2, 2026 (Central Time). Prices change; check the store before you buy.

Sources

How we reviewed

This is Cody's first-person owner review of the Kreg pocket-hole jig he owns and uses in his shop. The model was identified as the Kreg Pocket-Hole Jig K4 by matching his photos (benchtop base, rear toggle clamp, 3-hole guide with 1/2-5/8-3/4 thickness marks, clamp scale, knurled guide knob, underside storage for the stepped bit, stop collar and square driver) against kregtool.com. Specs come from Kreg's K4 product page and owner's manual. Safety notes paraphrase the Kreg manual and OSHA, not independent multi-outlet product testing. Links were last checked on .

No paid links. Every link on this page is a plain link: no affiliate codes or tracking, and no company paid or asked to be listed (disclosure). Links open in a new tab.