Bosch T101B 4 in. 10 TPI Clean-Cut Wood T-Shank Jigsaw Blades (5-Pack) Review (2026)
By Nate Sawyer, Editor · Updated July 2026
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- Wood
- Plywood
- Clean cuts
A 5-pack of 4 in. 10-TPI T-shank wood jigsaw blades with ground, side-set teeth for splinter-free edges in hardwood, plywood, and laminate. The T-shank fits roughly 90% of jigsaws with no adapter. Being high-carbon steel, they dull quickly and can't cut metal; the 10 TPI is slow, and the 4 in. length limits depth to about 1-1/4 in. stock.
Pros
- Ground, side-set teeth leave a splinter-free edge in hardwood, plywood and laminate
- T-shank fits roughly 90% of modern jigsaws with no adapter
- Inexpensive per blade, so dulled blades are cheap to swap out
Cons
- High-carbon steel dulls quickly and cannot cut metal or nails
- 10 TPI cuts slowly compared with coarse fast-cut wood blades
- Short 4 in length limits cutting depth to roughly 1-1/4 in stock
Specifications
| TPI | 10 variable pitch |
|---|---|
| Length | 4 in |
| Material | High-carbon steel (HCS) |
| Shank | T-shank |
| Best cut | Clean wood / plywood |
Frequently Asked Questions
- Will Bosch T101B blades fit my jigsaw?
- Almost certainly. These are T-shank blades, which fit roughly 90% of modern jigsaws with no adapter. If your saw takes U-shank blades - generally older models - they will not fit.
- Can the T101B cut metal or nail-embedded wood?
- No. It is high-carbon steel ground for clean wood cuts, and it cannot cut metal or nails. Hitting a hidden nail will ruin the blade. For anything with fasteners in it you need a bi-metal blade instead.
- How thick a board can a 4 in T101B cut?
- About 1-1/4 in of stock. The 4 in length is the limit on depth, so for thicker timber you need a longer blade even though the tooth profile would otherwise suit.
- Do these actually leave a splinter-free edge?
- That is what the ground, side-set teeth are for, and in hardwood, plywood and laminate they deliver a genuinely clean edge. The cost is speed: 10 TPI cuts slowly compared with a coarse fast-cut wood blade, and high-carbon steel dulls quickly. At roughly $9 for five, swapping a dull blade is cheap enough that it is not worth pushing one past its edge.