T-Shank vs U-Shank Jigsaw Blades
The difference between T-shank and U-shank jigsaw blades is the single most important compatibility question when buying jigsaw blades. Many saws take only one of the two types: a T-shank blade will not fit a U-shank-only jigsaw, and a U-shank blade will not fit a T-shank-only jigsaw. Some clamps accept both, so check your saw’s manual. We don’t know of a manufacturer-approved adapter. This guide explains the difference, how to identify which type your jigsaw uses, and which brands use which system.
Quick Answer
T-shank has a smooth tang with a bump/ridge that clicks into the blade clamp. U-shank has a U-shaped notch at the bottom. T-shank is the standard on current jigsaws from the major brands. U-shank is the older fitting, and U-shank blades are still made. If your jigsaw has a tool-free quick-release blade clamp, it uses T-shank.
What Is T-Shank?
T-shank (also called T-tang) blades have a smooth shank with a small raised bump on each side that locks into the jigsaw’s blade clamp. The “T” refers to the cross-shaped profile of the tang when viewed from the front. T-shank was invented by Bosch and has become the universal standard for modern jigsaws.
T-shank blades click into the blade clamp with a tool-free quick-release mechanism — you press a lever or button on the jigsaw, slide the blade in, and release. No tools required. This is one of the main advantages over U-shank and is the easiest way to identify a T-shank jigsaw.
What Is U-Shank?
U-shank (universal shank) blades have a U-shaped cut-out at the end of the shank, and some also have a small hole below it. They are usually held by a set screw or a small lever clamp, so on many saws you need an Allen key or screwdriver to change them.
U-shank was the original standard before T-shank replaced it. It is mainly found on older jigsaws. U-shank blades are still sold, though the range is smaller than for T-shank (for example Bosch’s 5-piece U-shank set, 2 608 667 855).
T-Shank vs U-Shank Comparison
| Feature | T-Shank | U-Shank |
|---|---|---|
| Blade change | Tool-free (lever/button) | Requires screwdriver/Allen key |
| Grip security | Excellent — rigid 3-point lock | Good, but can loosen during heavy cuts |
| Blade availability | Huge range — all major brands | Smaller range, but still made |
| Used by | Bosch, Makita, DeWalt, Milwaukee, Festool, Hikoki, Ryobi, Metabo | Some older Black & Decker, Skil, vintage jigsaws |
| Invented by | Bosch (1990s) | Pre-dates T-shank |
| Current status | The modern standard | Older fitting; blades still made |
Recommended Jigsaw Blades
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Important: a saw that takes only one shank type will not accept the other, and we don’t know of a manufacturer-approved adapter. If your saw takes only U-shank and you want the widest choice of blades, a T-shank jigsaw opens up the full range.
How to Tell Which Type Your Jigsaw Uses
The quickest way to identify your jigsaw’s blade type is to look at the blade clamp mechanism:
- Lever or button on the front/side of the jigsaw → T-shank. Press the lever, slide the blade in, release. No tools needed.
- Set screw on the blade holder (requires Allen key or screwdriver) → U-shank. The blade hooks onto a pin and is clamped by the screw.
- Check the existing blade — remove it and look at the shank end. T-shank has a smooth tang with bumps; U-shank has a U-shaped notch.
Which Brands Use T-Shank?
Every major power tool manufacturer now uses T-shank exclusively on their current jigsaw range. This includes Bosch (who invented it), Makita, DeWalt, Milwaukee, Festool, Hikoki, Ryobi, Metabo, Einhell, and Parkside. If you buy any new jigsaw today, it will use T-shank blades.
Recommended T-Shank Jigsaw Blades
| Blade Set | Pieces | Best For | Link |
|---|---|---|---|
| Bosch 10-Piece Jigsaw Blade Set | 10 | All-round starter set (wood, metal) | View on Amazon |
| Bosch Expert Laminate Clean T 128 BHM (3-Pack) | 3 | Clean cuts in laminate and vinyl | View on Amazon |
| Bosch Expert Hardwood T 308 BF (5-Pack) | 5 | Clean cuts in hardwood and plywood | View on Amazon |
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Common Questions
Can I use T-shank blades in a U-shank jigsaw?
Not in a saw whose clamp takes only U-shank blades: the shank shapes are different and we don’t know of a manufacturer-approved adapter. Some clamps accept both types, so check your saw’s manual.
Are all T-shank blades the same size?
The shank (the part that fits the jigsaw) is standardised across all T-shank blades. However, the blade body varies in length, width, tooth count, and material. A T-shank blade from any brand will fit any T-shank jigsaw.
Does Bosch make the best T-shank blades?
Bosch invented the T-shank system and their blade range is arguably the widest, but excellent T-shank blades are also made by Makita, Festool, and third-party brands like Saxton. Brand compatibility is not a concern — any T-shank blade fits any T-shank jigsaw regardless of brand.
Related guides: Saw Blade Compatibility Guide | Are Jigsaw Blades Universal? | Saw Blade Types Guide
How we compile this guide
We cross-reference compatibility details against manufacturer specifications where available, official tool manuals, and the physical standards that govern fitment (bore sizes, arbor diameters, voltage platforms, connector types). We prioritise primary sources over retailer listings, flag anything we can’t confirm, and re-verify the data on a regular cycle. Where we give a buying recommendation, we tell you the reasoning — not just the link. More on our method →