Kreg KMA4000-E Kreg Portable Circular Saw Crosscut Jig
Kreg KMA4000-E Kreg Portable Circular Saw Crosscut Jig
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Product Details
Product Details
Key Features
Overview
The Kreg KMA4000-E Kreg Portable Circular Saw Crosscut Jig (Model KMA4000-E) is a circular saw crosscut guide designed for fast, accurate crosscutting on boards up to 8 inches wide. This is a saw accessory designed for guided crosscuts with a circular saw when you want miter-saw style accuracy without the bulk.
Set-up is simple: mark your cut, align the guide to your pencil line, and cut. Retractable cutline indicators show where the blade will cut, so you can line up quickly and get consistent results without guessing.
For stability, the GripMaxx anti-slip base helps prevent the jig from walking during the cut, and the saw support ledge helps keep the saw straight as you start the cut. That combination is what keeps this guide useful on a jobsite where you are working off sawhorses or a tailgate, not a perfect bench.
The jig is built to handle real use with rugged, impact resistant polymer construction. It is meant to be tossed in the truck and pulled out whenever you need quick crosscuts for framing lumber, shelving, or project parts.
Angle versatility is built in. Use it for accurate 90 degree cuts for square ends and 45 degree cuts for miters, all with your circular saw.
It is also adaptable across saw styles. The guide works with both left-blade and right-blade circular saws, so you do not have to buy a specific saw layout to use it.
Kreg KMA4000-E Kreg Portable Circular Saw Crosscut Jig for clean jobsite cuts
Kreg KMA4000-E Kreg Portable Circular Saw Crosscut Jig for clean jobsite cuts
When the material is already on sawhorses, this guide gets you to a square cut fast. It is a solid way to improve accuracy without building a full cutting station.
- Guides crosscuts on boards up to 8 inches (203 mm) wide
- Saw support ledge helps keep the saw aligned as you begin the cut
Line it up once, cut with confidence
The retractable cutline indicators are there to save you time. You can see exactly where the blade will pass so you spend less time measuring twice and more time cutting.
- Retractable cutline indicators for quick cutline identification
- GripMaxx anti-slip base helps prevent slippage during use
Quick 45 degree and 90 degree crosscuts
This is a practical guide when you need repeatable crosscut angles with a circular saw. Use it for square ends, quick miters, and consistent parts without freehanding.
- Makes precise 90 degree and 45 degree cuts
- Ergonomic grip for a secure hold during important cuts
What's in the Box
- (1) Kreg KMA4000-E Portable Crosscut Guide
Key Specifications
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8 in (203 mm) board width |
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45 degrees and 90 degrees |
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Impact resistant polymer |
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GripMaxx anti-slip base |
Compatibility
Built For
Pro Tip
Before you pull the trigger, seat the saw tight to the support ledge and confirm the retractable cutline indicators are lined up to your pencil mark. That little check is what keeps your cut from drifting on the first inch.
Tool Nut's Take
A smart add-on for better circular saw crosscuts
The Kreg KMA4000-E Kreg Portable Circular Saw Crosscut Jig is for anyone who wants faster set-up and more repeatable results than freehand cuts.
- Who it's for: Remodelers, carpenters, and DIYers making lots of quick crosscuts on boards up to 8 inches wide.
- Why it stands out: Cutline indicators plus an anti-slip base and a saw support ledge, so the guide stays put and the saw starts straight.
- Worth knowing: It is a guide, not a fence system, so you still need decent work support under the board for the cleanest results.
Common Questions
- What is the maximum board width it can crosscut? Up to 8 inches (203 mm) wide.
- What angles can it guide? 45 degree and 90 degree cuts.
- Will it work with my circular saw? It is designed to work with both left-blade and right-blade circular saws.

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