Delta 34-670 Table Saw Review: Specs, Pros/Cons & Replacement Parts

The Delta 34-670 is a 10-inch contractor-style table saw that Delta stopped manufacturing years ago — but thanks to its cast-iron top and simple belt-drive design, it’s still one of the most common used table saws you’ll find on Craigslist, Facebook Marketplace, and in home shops today. This review covers what the saw actually offers, where it falls short by modern standards, and which currently-available replacement parts fit it now that Delta’s own parts pipeline for this model has dried up.

Delta 34-670 Specs at a Glance

Blade size	10 inches
Motor	15-amp universal motor
Max depth of cut	3.5 in. at 90°, 2.5 in. at 45°
Rip capacity	~32.5 in. right of blade, ~22 in. left
Drive	Belt-driven, 50-tooth 100XL100 timing belt
Table	Cast iron with steel extension wings
Status	Discontinued by Delta — used-market only

What the Delta 34-670 Does Well

• Cast-iron table: Holds flat over years of use and dampens vibration better than the stamped-steel tables on most modern benchtop saws in this price range.
• Simple belt drive: A single external timing belt connects the motor to the arbor. It’s easy to inspect and — as long as you can still get the belt — cheap to replace, with no proprietary drive assembly to fail.
• Real rip capacity: At roughly 32.5 inches to the right of the blade, it can break down a full sheet of plywood, which most portable jobsite saws in its era couldn’t match.
• Parts availability, mostly: Because Delta sold this platform (and its close siblings, the 36-600/36-610) for years, generic replacement belts are still cheap and easy to find even though Delta itself discontinued the model.

Where It Falls Short Today

• No riving knife: Like most saws of its generation, the 34-670 uses an older-style splitter and blade guard rather than a modern riving knife, which is a real step down in kickback protection compared to any current contractor saw.
• Discontinued factory parts: Delta doesn’t sell OEM parts for this model anymore. The throat plate insert in particular has no direct factory replacement — you’re limited to universal blanks you trim to fit (covered below).
• Fence quality varies by year: Depending on which fence your particular unit shipped with, expect to spend time tuning it parallel to the blade — this isn’t a rack-and-pinion fence on most versions, so it doesn’t lock as squarely as newer designs.
• 15-amp universal motor: Adequate for hardwood and sheet goods at moderate feed rates, but it will bog down faster than a saw with a true induction motor if you push hard rip cuts in thick hardwood.

Should You Buy a Used Delta 34-670?

If you already own one, it’s worth keeping running — the cast-iron table and belt-drive simplicity age well, and parts (belts especially) are still cheap. If you’re shopping used and see one for a good price, check the fence and trunnion for rust and confirm the belt isn’t cracked before buying; those are the two most common failure points on a saw this old. If you’re buying new rather than used, you won’t find a 34-670 for sale — Delta’s current contractor-saw lineup (like the 36-725) is the direct descendant and comes with a riving knife and better factory fence as standard.

Replacement Parts That Still Fit

Delta’s own parts supply for the 34-670 has dried up, so every part below is a verified-in-stock aftermarket replacement rather than a genuine Delta part. Confirm your saw’s exact model plate (34-670 vs. 34-674 vs. the near-identical 36-600/36-610) before ordering, since belt and insert dimensions are shared across this whole saw family.

Replacement Drive Belt

If your saw bogs down, slips under load, or you can see cracking on the belt through the access panel, this is almost always the fix. The stock belt is a 50-tooth 100XL100 timing belt — plenty of generic replacements are cut to this exact profile.

Zero-Clearance Throat Plate Insert

Delta never sold a direct factory-spec replacement insert for the 34-670 after discontinuing it. Be careful here: most of the current “universal Delta-compatible” inserts on the market are cut for Delta’s newer 36-725/36-5000-series saws and include a pre-cut riving knife slot — the 34-670 doesn’t have a riving knife, so that slot is wasted material at best and a bad fit at worst. What actually works on a 34-670 is a plain, uncut MDF or UHMW blank sized for a standard 10-inch contractor-saw opening, with no pre-cut riving knife slot. You raise the spinning blade up through the blank yourself to cut your own zero-clearance kerf, then trim the outer edges to match your saw’s throat opening with a utility knife or belt sander.

Measure your saw’s exact opening before ordering any blank, and skip any listing marketed specifically for the riving-knife saws mentioned above — it’s the wrong part for this model even though sellers often label it “Delta-compatible” generically.

Frequently Asked Questions

Is the Delta 34-670 still being made?

No. Delta discontinued the 34-670 and no longer stocks OEM parts for it. It’s now a used-market saw, though its close siblings (the 36-600 and 36-610) share the same belt and insert dimensions.

What timing belt does the Delta 34-670 use?

A 50-tooth, 100XL100 profile timing belt — the same one used on the Delta 36-600 and 36-610 contractor saws. Generic aftermarket belts cut to this profile are a direct drop-in for the factory belt.

Can I still buy a factory throat plate insert for the 34-670?

No — Delta never released a direct factory-spec replacement insert after discontinuing this model. Use a plain, uncut MDF or UHMW blank (not one pre-cut with a riving knife slot — the 34-670 doesn’t have one) sized for a standard 10-inch opening, and trim it to fit your saw.

Does the Delta 34-670 have a riving knife?

No. Like most saws from its era, it uses an older-style splitter and blade guard assembly rather than a modern riving knife, which is one of the biggest safety differences between it and a current contractor saw.

Conclusion

The Delta 34-670 earns its long shelf life on used-tool listings honestly: a flat cast-iron top, a dead-simple belt drive, and real full-sheet rip capacity in a footprint that fits a one-car-garage shop. It isn’t a saw you can buy new, and its lack of a riving knife is a real safety gap by today’s standards, but for a shop that already owns one, keeping it running with the belt and insert above is far cheaper than replacing it with a new contractor saw.