STANLEY 70-379E - 8 PCS Double Open End Spanners Set (6x7 to 20x22 mm) - Pan India Industrial Supply

The set supports metric fasteners commonly used in industrial assemblies and is supplied with compliant GST invoicing and pan-India dispatch capability.

Application Context & Use Cases

This set is typically procured for structured industrial use, not casual workshop requirements.
Common Deployment Environments

• Manufacturing plant maintenance departments
• Mechanical assembly lines
• Fabrication workshops
• Automotive service bays
• Institutional technical training facilities
• Field maintenance teams

Functional Use Cases

• Tightening and loosening metric hex nuts and bolts
• Accessing confined areas where ring spanners cannot seat
• Initial torque application before final tightening with torque tools
• Multi-size service kits for plant technicians

The 6x7 mm to 20x22 mm coverage supports light-duty assemblies through mid-range structural fasteners commonly found in machinery frames, panels, pump assemblies, brackets, and enclosures.

Selection Guidance – How to Choose Correctly

Before confirming procurement, validate the following:
Confirm Fastener Standard

• This set supports metric fasteners only
• Not suitable for inch/SAE fasteners

Confirm Size Coverage Adequacy
If your plant uses:

• M4–M14 bolts → This set is generally sufficient
• M16 and above → Additional larger spanners may be required

Open-End vs Ring Requirement
Select double open end spanners when:

• Access is restricted
• Bolt head cannot accommodate ring seating
• Rapid engagement is required

If final torque accuracy is critical, torque tools should follow initial tightening.

Capacity / Calculation Example (Real-World Logic)

Example – Maintenance Kit Planning
Assume:

• 5 maintenance technicians per shift
• Each requires one metric spanner set
• 3 shifts per day

Minimum operational sets required:
5 × 3 = 15 sets
Add 20% buffer for tool loss/replacement
15 + 3 = 18 sets total procurement
For centralized maintenance departments, standardizing on a complete size progression set reduces downtime due to missing sizes.

Failure Conditions & Misuse Risks

Improper use can reduce tool life and damage fasteners.
Common Misuse Conditions

• Using open end as final torque tool beyond rated load
• Hammer striking for force multiplication
• Use on damaged or rounded fasteners
• Using metric spanner on near-inch fasteners
• Applying extension pipes for leverage

Consequences include:

• Jaw spreading
• Edge rounding
• Chrome surface cracking
• Fastener head deformation

For structural bolting, torque-controlled tools are recommended.

Material & Compatibility Table

Material Interaction Suitability
Fastener Compatibility Overview

Chrome vanadium construction ensures strength retention under industrial usage when operated within intended load range

Operational Handling & Installation Considerations

• Ensure full jaw seating before applying force
• Apply force perpendicular to bolt axis
• Avoid partial engagement
• Store in dry environment to prevent surface corrosion
• Periodically inspect for jaw spread or wear

In maintenance departments, controlled tool issue systems reduce loss and misuse.

Commercial Clarity

Lead Time

• Stock-dependent dispatch
• Standard dispatch within committed timeline after order confirmation

Dispatch Capability

• Pan India logistics coverage
• Bulk and institutional shipments supported

MOQ

• No strict MOQ for standard orders
• Bulk pricing structured based on quantity

Customization

• No modification to standard STANLEY model
• No branding alterations

Compliance / Certification

• Supplied with GST invoice
• HSN classification provided in invoice
• Suitable for institutional and industrial procurement

Tender Compatibility

• Can be quoted against brand-specified BOQs
• Model code clearly referenced
• Commercial documentation structured for tender submission

Procurement Process – How to Enquire

To avoid delay, provide:

• Required quantity
• Delivery location (City / State)
• GST number
• Required delivery timeline
• Whether tender or direct purchase

After RFQ submission:

1. Internal stock verification
2. Commercial quotation
3. Dispatch confirmation timeline
4. Tax invoice issuance

Structured procurement reduces order errors.

Comparison Table – Common Alternatives

8 PCS vs Larger Sets

Open End vs Combination Spanners

Selection depends on maintenance protocol and torque requirements.

Selection Checklist

Before placing order, confirm:

•  Metric fasteners in use
•  Size range 6x7 to 20x22 mm is adequate
•  Open-end format acceptable
•  Industrial maintenance use case
•  GST invoice required
•  Bulk quantity evaluated
•  Delivery timeline confirmed

If all conditions are satisfied, this model is structurally appropriate.

High-Intent FAQs

1. Is STANLEY 70-379E suitable for industrial maintenance?
Yes. The size progression supports standard metric fasteners commonly used in plant maintenance environments.
2. Does the set include 21 mm size?
No. The maximum size is 20x22 mm. There is no standalone 21 mm in this configuration.
3. Is this compatible with inch fasteners?
No. This is strictly metric sizing.
4. Can this be used for high-torque structural bolting?
It is suitable for general tightening. For torque-critical applications, calibrated torque tools are recommended.
5. Is GST-compliant invoicing provided?
Yes. Supply includes GST-compliant tax invoice with HSN details.
6. Is bulk institutional supply supported?
Yes. Bulk industrial and institutional orders are supported based on stock availability.
7. Are individual sizes sold separately under this model?

No. This is a fixed 8-piece set configuration.