PEC Tools 6" Combination Square, 4R, Cast Iron Head, Made in USA
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- Made in USA: Hardened and tempered blade with a no-glare satin chrome finish and micro-fine 4R graduations (8ths, 16ths, 32nds, 64ths). Built in the United States for precise, repeatable measurement.
- Cast Iron Square Head: Hammertone-finished square/miter head with a level vial and hardened scribe. The reversible lock bolt holds the blade square to the head.
- Four Functions, One Tool: Seats for 90° and 45°. The blade slides for depth, height, and marking. Used for layout, fence setup, and inspection in the machine shop and on the bench.
- Reversible Lock Bolt: Clamps the blade in the head and holds alignment during layout, setup, and daily shop use.
- Sized for Bench Work: 6 in. blade for apron and bench use. Short layout, machine setup, and small parts for machinists, woodworkers, and fabricators.
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Select a product to estimate shipping.12” Machinist Blade
The 12" Machinist Blade is crafted from tempered stainless steel. Its 4R graduation system offers exceptional readability from 8ths to 64ths of an inch. The deep-etched markings are engineered to maintain their clarity through years of heavy use and with its satin chrome finish, you'll get clear readings even in low-light conditions.
Protractor Head
Reading both forward and reverse from 0 to 180 degrees, this versatile head lets you measure, mark, and verify any angle with confidence. Whether you're setting compound miters or checking critical angles on machined parts, the finely graduated markings and smooth locking mechanism ensure repeatable accuracy every time.
Center Head
This ingenious attachment makes finding the center of round stock or square materials virtually foolproof. By marking intersecting lines across curved surfaces, you can pinpoint center locations with professional accuracy. It's particularly valuable for lathe work, pattern making, or any project requiring precise centerline layouts on cylindrical objects.
Square Head
Built with precision-ground faces for both 45° and 90° applications, the Square Head features an integrated bubble level for instant alignment verification. The included hardened scriber point lets you mark your measurements directly on your workpiece when pencil marks won't suffice.
Product details








| Main Specification | |
|---|---|
| Material | Cast Iron Heads or Satin Chrome Finish on Carbon Steel Blade |
| Manufacturer | Pec Tools |
| Unit Count | 2 Count |
| Brand | Pec Tools |
| Number of Items | 1 |
| Included Components | 4R 6” Metal Blade\Square |
| Colour | 4R(1/8,1/16; 1/32,1/64) |
| Style | 2-Piece Combination Square (6" Blade) |
| Technical Details | |
| Material Type | Cast Iron Heads or Satin Chrome Finish on Carbon Steel Blade |
| Part Number | 7121-006 |
| Model | 4R 6” 2-piece |
| Style | |
| Style Name | 2-Piece Combination Square (6" Blade) |
| Others | |
| Item Highlight | 2-piece set: satin chrome blade or square/miter head or level and scribe. Layout and setup for machinists and woodworkers |
| Product Type | Carpentry Squares |









