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Professional 4" Engineer Steel Square - High-Precision 90° Machinist Tool with Wide Base & Laser-Etched Markings for Metalworking & Carpentry
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Professional 4" Engineer Steel Square - High-Precision 90° Machinist Tool with Wide Base & Laser-Etched Markings for Metalworking & CarpentryProfessional 4 Engineer Steel Square High Precision 90 Machinist Tool with Wide Base Laser Etched Markings for Metalworking Carpentry
Size:One Size
Actual Color:Black
selected, Black, was $13.31
Key item features
- Aerospace-Grade Accuracy – Hardened steel construction maintains ±0.001" tolerance for 90° internal/external angle verification.
- Non-Slip Wide Base – 2.5" x 0.5" weighted base ensures stability on curved surfaces (pipes/cylinders) during measurements.
- Laser-Etched Durability – Permanent metric/imperial markings withstand shop abrasion and chemical exposure.
- Multi-Industry Compliance – Meets ANSI B89.3.1-2018 standards for machinery alignment and welding fixture setups.
- Ergonomic Design – 4" full-length grip with knurled edges for secure handling even with oily gloves.
- Rivet-Reinforced Joint – Patented RiveLink™ corner technology prevents flex under 50lb lateral loads.
Specs
- MaterialSteel
- Rec. useConstruction
- ShapeSquare
- SizeOne Size
- BrandBagmrteho
- Accessories1 Engineer Square, 1 Calibration Report, 1 Storage Pouch
Current price is USDNow $10.22
You save $3.09
was $13.31$13.31
You save$3.09
Price when purchased online
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Arrives between Jun 18 - Jun 24
|Shipping fee $2.99
Sold and shipped by linyijun
1 star out of 5, based on 2 seller reviews(1.0)2 seller reviews
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About this item
Product details
Long Description:
Precision Measurement Redefined
Crafted for machinists and engineers, this steel square delivers unmatched reliability in:
- CNC machine calibration
- Welding jig alignment
- Cabinet door squaring
- Structural steel inspection
Technical Specifications
✅ Material Science
- Body: Case-hardened 4140 alloy steel (HRC 55)
- Surface: Black oxide coating (0.0002" thickness)
- Markings: Fiber-laser etched (0.005" depth)
✅ Dimensions
- Overall Length: 4" (101.6mm)
- Base Width: 2.5" (63.5mm)
- Thickness: 0.12" blade / 0.5" base
- Weight: 8.5oz (241g)
Usage Scenarios
• Aligning motorcycle frame welds
• Verifying 3D printer bed squareness
• Installing commercial glass partitions
• Quality control in metal stamping
Compliance & Care
⚠️ Quality Assurance
- Calibration Certificate Included (Traceable to NIST)
- Allow ±0.002" manufacturing variance
- Natural oxide coating may vary in sheen
⚠️ Maintenance
- Wipe with WD-40 after saltwater exposure
- Store in included anti-corrosion sleeve
- Re-calibrate annually under heavy use
Package Includes
1× Engineer Square
1× Calibration Report
1× Storage Pouch
- Aerospace-Grade Accuracy – Hardened steel construction maintains ±0.001" tolerance for 90° internal/external angle verification.
- Non-Slip Wide Base – 2.5" x 0.5" weighted base ensures stability on curved surfaces (pipes/cylinders) during measurements.
- Laser-Etched Durability – Permanent metric/imperial markings withstand shop abrasion and chemical exposure.
- Multi-Industry Compliance – Meets ANSI B89.3.1-2018 standards for machinery alignment and welding fixture setups.
- Ergonomic Design – 4" full-length grip with knurled edges for secure handling even with oily gloves.
- Rivet-Reinforced Joint – Patented RiveLink™ corner technology prevents flex under 50lb lateral loads.
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.
Specifications
Material
Steel
Rec. use
Construction
Shape
Square
Size
One Size
Directions
Fabric Care Instructions
Machine Washable
Warranty
Warranty information
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
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