Products for bench top machinists | LittleMachineShop.com

Double Square, 6" 4R, Starrett

Double Square, 6" 4R, Starrett - Main image
Double Square, 6" 4R, Starrett - View 2
$93.59 $155.99 In stock

The sliding blades are adjustable making it more practical for a wide variety of uses than a common square with fixed blade. The faces of the head are ground square, and the 6" (150 mm) size has a level.

The beveled blade and the drill grinding blade shown at the bottom of the photo are not included with this product.

Starrett catalog number 13C.

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Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Brian ★★★★★

Picked this up for some woodworking layout tasks and the sliding blade already saved me from having to switch between multiple squares. The head feels precision-ground to the body—everything sits flat and true.

Penelope ★★★★★

The sliding blades really do make a difference—I’ve used it for marking out both wood and metal without needing a second tool. The head feels solidly square, and the 6-inch length fits easily in my apron pocket for quick checks on the job.

Samuel ★★★★★

I love how the head’s ground-square faces let me check my setups without any wobble. The adjustable sliding blades are a nice touch for framing cabinets and odd angles.