STANLEY STMT89308-8B 3/4" Extension 400MM - Pan India Industrial Supply

We supply verified genuine units with Pan-India dispatch support for industrial procurement.

STANLEY STMT89308-8B Application Context & Use Cases

This extension is typically deployed in environments where:

• Fasteners are recessed inside heavy machinery housings
• Access clearance is restricted by structural framing
• Deep-set nuts require torque transmission without angular deviation
• Maintenance shutdowns demand fast tool replacement

Common Industrial Applications:

• Steel plant maintenance
• Power generation turbine housings
• Heavy fabrication shops
• Mining equipment servicing
• Infrastructure projects using large structural bolts
• Oil & gas mechanical maintenance

Functional Role:
The 400mm extension increases reach without compromising torque transmission when properly aligned. It is not designed to increase torque output — only to transmit torque to otherwise inaccessible fasteners.

Selection Guidance

 Confirm Before Procurement:
To avoid mismatch or operational delay, confirm:

1. Drive size of existing tool (must be 3/4")
2. Socket compatibility
3. Required reach (400mm clearance required)
4. Torque range of application
5. Whether alignment will remain straight during use

 Incorrect Selection Risks:

• Purchasing 1/2" instead of 3/4" drive
• Selecting shorter extension and adding multiple extensions (increases flex risk)
• Using with impact tools beyond rated tolerance

Capacity & Practical Calculation Example

Extension bars transmit torque; they do not increase torque output.
Example Scenario:
If torque wrench is set to 600 Nm:

• The extension will transmit 600 Nm provided:
  • The load remains inline
  • No angular adapter is used
  • No flex distortion occurs

If extension is used at angle:

• Effective torque reduces
• Fastener preload becomes unreliable

Operational Principle
Torque = Force × Lever Arm
The extension does not change lever arm length of the torque wrench — it changes reach only.

Failure Conditions & Misuse Risks

Improper use may result in:

• Drive end rounding
• Ball detent wear
• Surface cracking under impact loads
• Torsional flex fatigue

Common Misuse:

• Using with pneumatic impact wrench (if not impact-rated)
• Stacking multiple extensions
• Applying hammer shock loads
• Operating with lateral bending

Maintain straight torque alignment.

Material & Compatibility Table

Operational Handling & Installation Considerations

• Inspect drive square before installation
• Ensure ball detent locks fully into socket
• Avoid side loading
• Do not exceed rated torque of drive system
• Store in dry tool cabinet to prevent corrosion

Installation Steps:

1. Confirm drive match
2. Insert extension into drive tool
3. Confirm detent engagement
4. Attach socket
5. Apply torque inline

Commercial Clarity

Lead Time
Ready stock status can be confirmed at time of enquiry.
Dispatch Capability
Pan-India dispatch via surface or air cargo depending on urgency.
MOQ
No strict MOQ for standard procurement. Bulk orders supported.
Customization
No modification available. Standard manufacturer specification only.
Compliance

• GST billing provided
• Genuine branded supply
• Industrial packaging
• Standard manufacturer warranty as applicable

Tender Compatibility
Supply documentation suitable for industrial procurement and tender submissions where branded tools are specified.

 Procurement Process

To process enquiry efficiently, provide:

• Required quantity
• Delivery location (City & State)
• Application type (maintenance / project / resale)
• Required delivery timeline
• Company GST details

Process Flow:

1. Enquiry submission
2. Stock confirmation
3. Commercial quotation
4. Payment confirmation
5. Dispatch with tracking

Procurement communication handled by industrial supply desk.

Comparison Table – Common Alternatives

Selection depends on clearance depth and torque environment.

Selection Checklist

•             3/4" drive confirmed
•             400mm reach required
•             Inline torque application ensured
•             Not for impact misuse
•             Quantity aligned with maintenance schedule
•             Delivery timeline verified
•             GST details ready

High-Intent FAQs

1. Is this genuine STANLEY supply?
Yes. Supplied as branded genuine product with proper invoicing.
2. Can it be used with a 3/4" torque wrench?
Yes, provided torque application remains inline and within tool rating.
3. Is it impact-rated?
This model is designed primarily for manual torque applications. Confirm impact use requirement before ordering.
4. What is the delivery timeline?
Dispatch timeline depends on stock availability and destination. Pan-India logistics supported.
5. Do you supply bulk quantities?
Yes. Bulk procurement supported for distributors and industrial buyers.
6. Is there any warranty?
Standard manufacturer warranty applies as per brand policy.
7. Can this be used in high-torque structural bolting?
Yes, provided alignment is maintained and torque rating of drive system is not exceeded.