I don't have a built-out work bench, just a portable folding work bench. Can I install and use this on my portable work bench?

It would depend on how sturdy your portable folding work bench is. The miter trimmer is a heavy tool & I use it on a regular wooden work bench that is quite sturdy and do not have to bolt or screw it down as its own weight holds it just fine. I get very good results from the trimmer and use it quite often almost exclusively for picture frames.

does this trimmer come with blades?

There are two blades installed but you can buy replacement blades.

The description says "totally adjustable for 45 degree and 90 degree cuts." are there presets, or am i stuck making sure i adjust it exactly?

It comes with stops accurately set for 45 & 90. But they can be tweaked. Once set, they stay set. I haven't touched mine in years.

What is height of board that can go through or how many inches is gap between base and top cutting edge?

It's about 4" as the other answers say. But that doesn't mean you can actually cut something that thick. This thing is used mainly to slice incredibly thin shavings in order to sneak up on a precise measurement. But trying to do that with a 4" thick piece of (say) hard maple is incredibly difficult.

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Rockler Miter Trimmer for Precision Picture Framing & Laminate Cuts

Rockler Miter Trimmer for Precision Picture Framing & Laminate Cuts

Product ID: 134381898

Details

Blade Material
High Speed
Brand
ROCKLER
Color
Black
Power Source
Corded
Surface Recommendation
Cast Iron Wood

📐Adjustable 45°-90° angles

🔪Razor-sharp shearing knives

🛠️Durable machined cast iron body

Bs.15986

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Description

📏 Cut sharp, cut smooth, cut like a pro!

SPEED MEETS ACCURACY - Cut up to 4" stock on miters and 6" on square ends with lightning-fast precision.
PRECISION ANGLE MASTERY - Instantly lock in any angle from 45° to 90° for flawless miters every time.
BUILT TO LAST A LIFETIME - Machined cast iron frame and heat-treated steel knives ensure unmatched durability.
GLASS SMOOTH FINISH CUTS - Shear micro-fine slices with razor-sharp knives—no sanding or tear-out needed.
CRAFTSMANS SECRET WEAPON - Ideal for trim carpenters, cabinet makers, and picture framers who demand perfection.

The Rockler Miter Trimmer is a professional-grade trim saw designed for precision picture framing and laminate cuts. Featuring adjustable and lockable gauges from 45° to 90°, razor-sharp shearing knives for micro-fine slices, and a durable machined cast iron body, it delivers glass-smooth finish cuts without sanding or tear-out. Perfect for serious woodworkers, it handles up to 4" stock on miters and 6" on square cuts, combining speed, accuracy, and longevity in one essential tool.

Specifications

ASIN	B07RJ1N5C4
Best Sellers Rank	#553,739 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #715 in Handsaws #11,090 in Power Tools (Tools & Home Improvement)
Blade Material	High Speed Steel
Blade Shape	Rectangular
Brand Name	ROCKLER
Color	Black
Customer Reviews	4.3 4.3 out of 5 stars (77)
Cutting Angle	90 degrees
Included Components	Gauges, Knives
Item Dimensions L x W x H	102"L x 8.2"W x 24.5"H
Item Highlight	Miter Trimmer – Precision Miter Trimming – Laminate Cutter – Adjustable Angles – Smooth Cuts
Item Weight	30.6 pounds
Manufacturer	Rockler
Other Special Features of the Product	Adjustable and lockable gauges for precise angle cuts, Razor-sharp knives for micro-fine slices and glass-smooth finish cuts
Power Source	Corded Electric
Surface Recommendation	Cast Iron, Glass, Wood
UPC	733175264778
Warranty Type	limited warranty

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TrustScore 4.5 | 7,300+ reviews

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Bs.15986

Duties & taxes included

In stock

Sold byAmazon BoliviaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Bolivia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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