Black Friday Sale!

10% OFF Sitewide - discount applied at checkout

PMC Supplies
SKU: MEAS-0034

4" Machinist Square

In Stock
$12.62
Shipping calculated at checkout.

4" Machinist Square

The 4 inch machinist square delivers precision for design and layout work. Crafted from hardened carbon steel with high tolerance and a ground surface and edges, this 90-degree square ensures accurate right angles every time. Built to German DIN Standard 875 Grade 1, it serves as a trusted instrument for engineers, machinists, and workshop professionals. The compact 4" (100 mm) size pairs a sturdy base thickness of 15/32" (11.86 mm) with a consistent squareness across measurement tasks, resisting wear in daily use and delivering repeatable results.

  • Hardened carbon steel construction for durability
  • High tolerance for dependable squareness
  • Ground surfaces and edges for accurate readings
  • DIN 875 Grade 1 compliant for standardization
  • 4" (100 mm) size with 15/32" (11.86 mm) base

Perfect for layout, metalworking, woodworking, and design tasks that demand precise 90-degree angles. The 4 inch machinist square helps you mark, verify, and transfer lines with confidence—creating clean lines and tight fits across projects. Enhance your workflow by adding this square to your toolkit today.

Payment & Security

Payment methods

  • Amazon
  • American Express
  • Apple Pay
  • Bancontact
  • Diners Club
  • Discover
  • Google Pay
  • iDEAL
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Product comparison grid

Choosing the right product can be overwhelming. Our Product Comparison Grid helps you quickly analyze features, specifications, and prices side by side, so you can make an informed decision.

A table comparing the facets of 4 products
Facet
1 MM Sterling Silver Ball Chain (Per Inch) by PMC Supplies
1 MM Sterling Silver Ball Chain (Per Inch)
View details
Gold Frenchwire 0.80 mm gauge in transparent case for jewelry finishing
Gold Frenchwire - 0.80 mm to 1 Meter
View details
14-piece high-density steel circle and round disc cutter set for soft metals, sizes 1/8" to 7/16"
14-Piece Circle and Round Disc Cutter Set - 1/8" to 5/8"
View details
1-1/2 inch natural rawhide hammer with leather mallet head and wooden handle for non-marring metalwork and jewelry crafting
1-1/2" Natural Rawhide Hammer Leather Mallet
View details
Price
Price
$0.30
$5.25
$28.33
$21.95
Description
Description1 mm Sterling Silver Ball Chain (Per Inch) Discover the 1 mm Sterling Silver Ball Chain—an uncomplicated, professional base for... Gold Frenchwire - 0.80 mm to 1 Meter Gold Frenchwire is a tightly coiled, gold-colored wire used to finish pearl... 14-Piece Circle and Round Disc Cutter Set — 1/8" to 5/8" Achieve precise, clean cuts with the 14-Piece Circle and... 1-1/2" Natural Rawhide Hammer Leather Mallet The 1-1/2" Natural Rawhide Hammer Leather Mallet is an essential tool for jewelry forming,...
4 inch machinist square made of hardened carbon steel with precise 90-degree angle and ground surfaces
PMC Supplies

4" Machinist Square

$12.62

4" Machinist Square

The 4 inch machinist square delivers precision for design and layout work. Crafted from hardened carbon steel with high tolerance and a ground surface and edges, this 90-degree square ensures accurate right angles every time. Built to German DIN Standard 875 Grade 1, it serves as a trusted instrument for engineers, machinists, and workshop professionals. The compact 4" (100 mm) size pairs a sturdy base thickness of 15/32" (11.86 mm) with a consistent squareness across measurement tasks, resisting wear in daily use and delivering repeatable results.

  • Hardened carbon steel construction for durability
  • High tolerance for dependable squareness
  • Ground surfaces and edges for accurate readings
  • DIN 875 Grade 1 compliant for standardization
  • 4" (100 mm) size with 15/32" (11.86 mm) base

Perfect for layout, metalworking, woodworking, and design tasks that demand precise 90-degree angles. The 4 inch machinist square helps you mark, verify, and transfer lines with confidence—creating clean lines and tight fits across projects. Enhance your workflow by adding this square to your toolkit today.

View product