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Kreg 320 Clamp Kit vs K4: Which Setup Fits Your Projects?

Choose the Kreg 320 clamp kit for a portable, reconfigurable setup. Choose the K4 if an integrated bench clamp and fixed guide combinations better match your work; its removable guide also handles repairs.

Published by Pickoryx · Published 2026-10-12

Source checked 2026-10-12 13:18 UTC

Products compared

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The buying question

Do you want a portable modular jig or an integrated bench setup?

Reconfigurable guides versus an integrated clamp and fixed guide combinations.

Quick verdict

When to skip: Your material is outside the 1/2–1 1/2-inch actual-thickness range.
When the recommendation changes
  • Repair work alone does not rule out the K4.
  • Material outside the supported thickness range needs another solution.

The differences that matter

Workholding

Kreg Pocket-Hole Jig 320 with Classic 2 Inch Face Clamp (KPHJ320-22)

Portable jig secured directly to the workpiece with a separate clamp.[1, 3]

Kreg Pocket-Hole Jig K4

Integrated rear toggle clamp; base can be screwed or clamped to a bench.[2]

What this changes: Choose according to where you want to hold the work, rather than assuming either jig drills better.[1, 3, 2]

The better fit depends on your priorities

Hole Layout

Kreg Pocket-Hole Jig 320 with Classic 2 Inch Face Clamp (KPHJ320-22)

Two guides twist apart; removing the spacer changes their spacing.[1, 3]

Kreg Pocket-Hole Jig K4

Three fixed guide holes: B/C for 1–2-inch boards, A/B for 2–3 inches, A/C for 3–4 inches.[2, 4]

What this changes: The 320 changes the guide assembly; the K4 changes which holes you use. Wide panels still require repositioning.[1, 3, 2, 4]

The better fit depends on your priorities

Best for your routine

Preparing loose boards at a bench

Best fit: Kreg Pocket-Hole Jig K4

Based on listed features, not comparative testing.

The K4 suits an integrated station; allow access to its rear clamp.

View Kreg Pocket-Hole Jig K4 on AmazonPaid link

Value and trade-offs

One or both observed offers have eligibility conditions, so no unrestricted price difference is shown.

Pay more only for the setup you will actually use.

Price history is insufficient to assess purchase timing.

Limitations

  • This comparison covers the KPHJ320-22 face-clamp kit and standard K4, not the bare 320 or K4 Plus/Master packages.
  • No comparative drilling-speed, accuracy, joint-strength or durability testing was performed.
  • Secure the jig and workpiece before drilling; never hand-hold the guide. Follow the drill manufacturer’s instructions and use eye, hearing and respiratory protection.

Questions shoppers ask

Does the 320 only work at its three labeled thicknesses?

No. Use its thickness gauge and manual’s range-based screw chart for intermediate thicknesses. Set the stop collar too; the three labels are not three exclusive material sizes.

Is the K4 bench-only?

No. Its removable guide has a repair procedure, as does the 320. Check access for the guide, drill and secure fastening before choosing either for an assembled project.

How do the K4 guide pairs map to board width?

The manual specifies B/C for 1–2-inch widths, A/B for 2–3 inches and A/C for 3–4 inches. Follow its layout guidance when repositioning across wider panels.

Methodology and sources

Compared documented workholding, guide configurations and setup instructions for the US models.

AI assisted source research, drafting and editing. Pickoryx did not conduct hands-on testing.

View 4 sources
  1. 1.Kreg Pocket-Hole Jig 320: product detailsKreg Tool · Official specifications · Source checked 2026-10-12 13:17 UTC
    Evidence used on this page
    • Product details and specifications: Portable 320 hardware, removable spacer and material range. Bare-jig page; not the -22 package list.
  2. 2.Kreg Pocket-Hole Jig K4: product detailsKreg Tool · Official specifications · Source checked 2026-10-12 13:17 UTC
    Evidence used on this page
    • Item K4; product details and specifications: Integrated clamp, bench mounting, three guides and thickness settings.
  3. 3.Kreg 310/320 North American owner’s manualKreg Tool · Official specifications · Source checked 2026-10-12 13:17 UTC
    Evidence used on this page
    • PDF pages 2, 7–11; 4/2019 NK9398V1: Clamping, guide configuration, repairs and thickness-range chart.
  4. 4.Kreg K4 North American owner’s manualKreg Tool · Official specifications · Source checked 2026-10-12 13:17 UTC
    Evidence used on this page
    • Printed pages 2, 4–9; 05/2023 112416 V1: Setup, guide pairs, repair use and safety.