UNIPEC Precision Double Square, 6-Inch

The UNIPEC Precision Double Square is a compact 6-inch layout tool listed for checking square, measuring, and marking in woodworking, metalworking, and machine setup. The listing describes an adjustable sliding head and 4R graduations, but provides no customer-comment details to explain the ratings.

At a glance

Listed with a 4R blade marked in eighths, sixteenths, thirty-seconds, and sixty-fourths.
The maker describes a sliding head that locks for measuring, marking, and checking squareness.
The listing describes 90° and 45° angles and hardened steel blades with finely ground edges.
A 6-inch blade is presented as a compact option for woodworking, metalworking, and machine setup.

Price

$34.99Save 50%

Reference price: ~~$69.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

The compact 6-inch format is suited to short layout checks and tighter work areas.
The stated 4R graduations provide several fractional scales on the blade.
The sliding head is described as locking in place for varied measuring and marking tasks.

Cons

The short blade limits reach compared with longer layout squares.

Technical specifications

5 specifications

Identity
Brand	UNIPEC
Model	6 Inch

Dimensions and design
Dimensions listed	6"L x 6"W
Graduation range	6 inches
Style	Classic

What to know before buying

The listing describes the blade as hardened steel in one feature and the body as stainless steel or hardened steel in another. Verify the actual material and head construction if these details matter. The stated 90° and 45° accuracy and locking-head performance are maker claims, not independently verified.

What’s in the box

Included

1 double square

Who is it for?

A good fit for

Woodworkers, machinists, and metalworkers needing a compact square for layout and setup.
Buyers who want fractional 4R graduations on a short blade.

Less suited to

People who need a longer rule for checking or marking across wide workpieces.
Buyers who require independently documented accuracy or a confirmed material specification.

UNIPEC Precision Double Square, 6-Inch · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 29 ratings

5 stars63%63%
4 stars28%28%
3 stars9%9%
2 stars0%0%
1 star0%0%

Aggregate ratings lean positive, with most ratings in the four- and five-star categories and some three-star ratings. Without customer-comment details, the reasons for those ratings are unknown. Buyers should assess the stated 6-inch size and 4R graduations against their needs, and treat the claimed accuracy and materials as unverified listing details.

Frequently asked questions

What graduations are listed?

The listing identifies a 4R blade with eighths, sixteenths, thirty-seconds, and sixty-fourths.

Does the square have a sliding head?

The maker describes an adjustable sliding head that locks in place for measuring, marking, and checking squareness.

What materials are specified?

The listing is inconsistent: one feature says hardened steel blades, while another describes a stainless steel or hardened steel body. Confirm the material with the seller if it is important to your purchase.

What do customers say about it?

The available evidence includes aggregate star ratings but no customer-comment summary, so specific strengths or complaints cannot be attributed to reviewers.