Search  for anything...

3.8"Mini 3D Multi-Angle Measuring Square Ruler, WT102A High Precision Hole Scribing Woodworking Tools, 0-90° Aluminum Alloy Carpenter Square Wood Working Tools, Carpenter Pencils 6 Refills.

  • Based on 498 reviews
Condition: New
Checking for the best price...
$15.99 Why this price?
Save $1.99 was $17.98

Buy Now, Pay Later


As low as $3 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Saturday, Feb 21
Order within 2 hours and 50 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Color: 3.8 inch Square+Pencil


Style: Imperial


Features

  • Multi-Functional Woodworking Tools: Crafted by combining a rafter square ruler and a triangle ruler with imperial scales, the WT102A carpenter square integrates measurement, calibration and marking into one. It serves as a high-precision layout wood working tools and accessories, perfect for DIY enthusiasts and carpenters engineers.
  • 3D Multi-Angle Measuring Ruler: Featuring scales in three dimensions, this carpenter tools facilitate precise measurements of length, width, vertical height, and 0-90 degree angles. Easy to assemble and disassemble. Convenient to operate. Accurately mark 0-90 degree angles or draw perfect horizontal lines without rotating the woodworking square body.
  • Professional Woodworking Tools and Accessories: The imperial measuring ruler comes with a professional carpenter pencil (built-in pencil sharpener) and 6 refills (2.8mm break-resistant) and an Allen wrench. Whether in workshops, construction sites or at homes, it can provide the necessary measuring and marking with comprehensive user experience.
  • High-Precision Measuring Tools: Crafted with high-precision laser engraving technology, constructed from high-strength aluminum alloy with a thickened body, this woodworking ruler guarantees clear and fade-resistant scales and measurement stability. Its 3.8*3.3*2.8 inches size provides an extended measurement range, ranging from 1/16 inch to 3.8 inches.
  • Durable and Elegant: Featuring an anodized aluminum alloy body, our woodworking tools carpenter square not only boasts an exquisite appearance but also exceptional wear, corrosion & rust resistance for extended longevity. Its lightweight and sturdy construction make it your long-term partner.

Material: Aluminum


Brand: ARTYMASTER


Color: 3.8 inch Square+Pencil


Style: Imperial


Product Dimensions: 3.8"L x 3.3"W


Product Dimensions: ‎3.8 x 3.3 x 0.04 inches


Item Weight: ‎6.7 ounces


Manufacturer: ‎ArtyMaster Tools


Date First Available: ‎January 31, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Feb 21

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Great shop tool!
Color: 3.8 inch Square+Pencil Style: Imperial
The usefulness and quality of this little multi-square is as great! The alignment, squareness and fit is perfect. You can easily measure, draw long precise lines and scribe angles. It even has a mechanical pencil, sharpener and spare lead. The look is good and the value is even better.
Reviewed in the United States on November 26, 2025 by Jimmy Ray Jimmy Ray

  • Works great
Color: 3.8 inch Square+Pencil Style: Imperial
Handy little tool, lightweight, accurate, nice and compact easy to read measurements
Reviewed in the United States on January 18, 2026 by Stephen Ashman

  • A must-have duo for any workshop
Color: 3.8 inch Square+Pencil Style: Imperial
I tested this against other squares, my table saw blade, and band saw blade. Either this thing is square, or everything I own if off-square by the exact same amount. I think this thing is square. This tool looks good, it’s lightweight, and it’s aluminum instead of plastic so it’s not going to get bent out of shape easily. Functionally it’s great for marking wood for cutting straight or an angle or quickly verifying your blades are properly set to 90 degrees. The markings are etched and colored so the contrast against the red makes it easy to read. The included mechanical pencil is now one of my favorites in the workshop. You always have lead at the ready with a button push, it’s thin enough to get a mark in tight spaces, and has a built in sharpener on the end. ... show more
Reviewed in the United States on January 20, 2026 by R. Nicholson

  • Quality far beyond the price
Color: 3.8 inch Square+Pencil Style: Imperial
This is the perfect size, and with removable spine via 2 flush fit screws, can double as a small normal square for trim work. Very accurate hole placements and laser etchings. Straight as an arrow, and good quality casting/extrusion. Even anodized finish. Excellent square with lots of uses! The bonus mechanical pencil is great too. ... show more
Reviewed in the United States on December 5, 2025 by C Squared

  • Nice little square
Color: 3.8 inch Square+Pencil Style: Imperial
I haven’t had a chance to check it with my master square, but seems accurate. I really like the add-on square, however it makes it rather bulky for shop apron pockets. I’ll most likely change it to 5 stars after I get a chance to use it more
Reviewed in the United States on January 6, 2026 by brian t

  • Accurate and well made
Color: 3.8 inch Square+Pencil Style: Imperial
Very handy tool. It has become one of my go to tools when laying out a project. The compact size makes it very useful in tight areas.
Reviewed in the United States on February 10, 2026 by D.R. Briggs

  • Well worth the price.
Color: 3.8 inch Square+Pencil Style: Imperial
I needed one of these for my hobby of carving. It is just the right sizexcellentood quality, and it was reasonably priced. It was received in very sturdy packaging, easy to put together, and I was pleasantly surprised at the accuracy. I would definitely use this seller again.
Reviewed in the United States on January 8, 2026 by Terry Smothermon

  • Excellent tool, great value!
Color: 8 inch Square+Pencil Style: Imperial
I inspected the square on arrival and found that all the right and 45* angles were accurate, as were the linear measurements, and the straight edges were also true. The aluminum material is sturdy and the red coating seems durable. 4 screws are provided to attach the angle piece to the main piece, though only 3 are need (one is a spare). A tool for installing the screws is also provided, and the screws fit snugly. I applied a small bead of glue to each to ensure there’s no backout. The mechanical pencil is also high quality, and has a sharpener for the leads built into the handle. Overall, comparable in quality to similar but more expensive options from others. ... show more
Reviewed in the United States on November 30, 2025 by Amazon Customer

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...