Bosch GTS15-10 Review: What Changed From the 4100-09
The Bosch GTS15-10 is the current 10-inch jobsite table saw in the line that started with the 4100. It rips 32-1/8 inches to the right of the blade against the old saw’s 25, cuts 3-9/16 inches deep at 90 degrees, spins at 3,800 rpm, and sells for about $649 with its gravity-rise stand.
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If you landed here because your 4100-09 finally gave up, or because you read our Bosch 4100-09 review and went looking for one to buy, this is the saw that replaced it. Not directly — there was a model in between — and the gap between what you had and what Bosch sells now is wider than the model number suggests.
The Three Saws, Side by Side
Bosch did not jump from the 4100-09 to the GTS15-10 in one step. The 4100XC-10 sat in the middle, and a lot of the specs floating around in forum threads actually belong to that middle saw. Here is the whole line in one place.
| 4100 / 4100-09 | 4100XC-10 | GTS15-10 | |
|---|---|---|---|
| Rip capacity, right of blade | 25″ | 30″ | 32-1/8″ |
| Depth of cut at 90° | 3-1/8″ | 3-1/8″ | 3-9/16″ |
| Depth of cut at 45° | 2-1/4″ | 2-1/4″ | 2-1/2″ |
| No-load speed | 3,650 rpm | 3,650 rpm | 3,800 rpm |
| Rip fence | SquareLock | SquareLock | Rack and pinion |
| Stand | GTA47W gravity-rise | GTA47W gravity-rise | GTA50W gravity-rise, 8″ tires |
| Motor | 15 amp | 15 amp | 15 amp, 120V |
The old-saw column comes from JLC’s 2008 review of the 4100, which lists a 25-inch maximum rip, 3-1/8 inches of cut at 90 degrees, 15 amps and 3,650 rpm. The new column is Bosch’s own spec sheet. We have not had a GTS15-10 in a shop, so what follows is a specification and published-review comparison rather than our own bench time — where somebody else did the hands-on work, we say whose.
Seven Inches of Rip Is the Real Upgrade
Everything else on that table is a refinement. The rip capacity is a different saw.
Splitting a 4×8 sheet of plywood down its length needs the fence at 24 inches. The 4100 cleared that by an inch, which works right up until the sheet wanders and you discover there is nowhere to put your hands. The GTS15-10’s 32-1/8 inches means you set the fence, push the sheet through, and the offcut is still supported on the table instead of hanging off the far edge. If you build cabinets, closet systems, or anything else that begins as sheet goods, that one number is the reason to upgrade.
The extra depth matters less often but matters a lot when it does. 3-9/16 inches at 90 degrees clears a 4×4 in a single pass, which the 3-1/8-inch saws could not do. Bosch lists the GTS15-10’s cross-cut capacity as a 4×4 single cut for exactly that reason. Deck posts and pergola timbers stop being a flip-and-line-it-up-again operation.
The Fence Change Is the Other One That Counts
SquareLock squared itself as you clamped it down, which on a 2008 jobsite was most of the battle. The GTS15-10 uses a rack-and-pinion fence with a knob instead: you dial the measurement in rather than nudging and re-checking. Pro Tool Reviews, who scored the saw 9.5 after job-site use, call the old SquareLock not quite as fool-proof as the new arrangement. They rate the cutting performance itself as essentially unchanged from the 4100XC-10.
What Carries Over From Your Old Saw
The boring compatibility questions are the ones that decide whether an upgrade stings, so:
- Blades carry over. Still 10 inches, still a 5/8-inch arbor. Your good 40-tooth combination blade goes straight onto the new saw.
- Dado stacks work. The GTS15-10 takes a 6- or 8-inch stack up to 13/16 of an inch, per Pro Tool Reviews. Same ballpark as before.
- The stand does not carry over. The gravity-rise idea survives, but it is a GTA50W now, on 8-inch tires, not the GTA47W. Saw and stand ship together.
- Throat plates and zero-clearance inserts almost certainly do not. Bosch lists the TS1005 insert for the 4000 and 4100 series specifically. We have not found a Bosch document stating what fits the GTS15-10, so check the part number before you order one rather than assuming the old insert drops in.
Where It Loses
The dust port is the complaint worth knowing about before you buy. Pro Tool Reviews put calipers on it: 2.23 inches inside, 2.47 inches outside, and none of the vacuum hoses they had on hand would fit either way. Their DeWalt shop vac hose measured 2.08 inches inside. Plan on an adapter, and measure before you drive to the store — our notes on dust collection fittings cover the sizes involved.
Weight is a wash at best. Bosch lists the GTS15-10 at 91 pounds, and Pro Tool Reviews repeats that figure; JLC weighed the old 4100 at 60 pounds bare and 99 with its stand. Bosch does not say whether its 91 includes the stand, so do not count on saving your back either way.
On price, the interesting comparison is historical. JLC listed the 4100 at a $500 street price in 2008, $600 with the gravity-rise stand. The GTS15-10 is $649 with the stand — the MSRP Popular Woodworking lists, and roughly what it sells for. Eighteen years and seven inches of rip capacity later, Bosch is charging about eight percent more in nominal dollars. Very little in a tool catalogue has held its price like that.
Is a Used 4100 Still Worth Buying?
Sometimes, and the deciding factor is parts rather than performance. Bosch’s service site still carries a spare-parts page for the 4100, so a used saw with a tired switch or a cracked guard is not automatically scrap. What you cannot buy back is rip capacity. Pay used-saw money for a used saw, not new-saw money for nostalgia.
So Should You Upgrade?
If your 4100-09 still runs and you mostly cut dimensional lumber, keep it. Nothing on the new saw fixes a problem you have. The motor is 150 rpm faster and the guard is a bit nicer, and neither is worth $649.
If you break down sheet goods, upgrade and do not overthink it. Going from 25 to 32-1/8 inches of rip changes which cuts are possible rather than which cuts are comfortable, and that is the only kind of upgrade that pays for itself.
If the old saw is dead and you are replacing it outright, the honest comparison is not the 4100-09 at all — it is the GTS15-10 against the DeWalt DWE7491RS. The DeWalt rips 32-1/2 inches, a hair more than the Bosch, but only cuts 3-1/8 inches deep at 90 degrees, so the 4×4 single pass goes back on the shelf. Both have listed at $649, but the DeWalt has repeatedly been promoted down to the $499–$549 range, which the Bosch has not. Bosch’s case is the depth of cut, the electronically regulated speed Bosch lists for holding rpm under load, and the dial-in fence; DeWalt’s is the price history.
Check the current price on the Bosch GTS15-10
For where this saw sits among the rest of the options, start with our table saw guide.