Wera 3840/1 TS Hex Bit - 5mm x 25mm

High-quality bits of stainless steel for hexagon socket screws. The Hex-Plus profile offers a grea...

Best current price£3.48from Rapid Online - Rapid Electronics Ltd.

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Rapid Online - Rapid Electronics Ltd.Wera 05071073001 3840/1 TS Torsion Stainless Insert Bit Hex 3.0 x 25mm
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OnBuy.comWera 071075 3840/1 Ts Torsion Stainless Steel Insert Bit Hex 5.0 X 25Mm 4013288111241
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Blueperry agriculture (UK)Wera Ts 4.0X25 Bit Sc38401ts40
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eBayWERA 05071071001 Screwdriver bit
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Product Information

Full details

This Wera 3840/1 TS Hex Bit is designed for professionals and DIY enthusiasts who frequently work with hexagon socket screws, offering enhanced durability and reduced screw head damage. Its key benefit lies in the Hex-Plus profile and torsion design, which significantly prolongs the life of both the bit and the screw. A potential consideration is that it's specialized for hexagon socket screws and requires a compatible holder.

All features

Model Part Number071075
BrandWera

Extended Product Information

FAQs

What is the Hex-Plus profile?

The Hex-Plus profile features a greater contact surface in the head of the screw, which reduces the 'notching effect' and minimizes damage to the screw head compared to conventional bits.

What is the benefit of the Torsion zone?

The Torsion zone is designed to absorb torque peaks. This protects the bit from premature wear and extends its overall service life, especially when subjected to high or sudden forces.

Can I use this bit with any power drill?

Yes, as long as your power drill or impact driver has a standard 1/4" hex chuck or holder that conforms to DIN ISO 1173-D 6.3.

Why is it recommended to use with stainless steel screws?

The bit itself is made of stainless steel. Using it with stainless steel screws prevents 'extraneous rust,' which is rust transferred from a carbon steel tool to a stainless steel fastener, maintaining the aesthetic and integrity of the workpiece.

What size screw is this bit designed for?

This specific model, the 3840/1 TS Hex Bit, is 5mm. It is designed for 5mm hexagon socket screws.

How does this bit differ from a standard hex bit?

It differs through its Hex-Plus profile for better grip and reduced wear, and its Torsion zone for shock absorption, both contributing to a longer lifespan and less damage to screws compared to standard bits.

What is the length of this bit?

The length of this Wera 3840/1 TS Hex Bit is 25mm.

Troubleshooting

Bit slips out of screw head

Ensure the Hex-Plus profile is fully seated in the screw head. Verify you are using the correct bit size for the screw. Check for excessive wear on the screw head.

Premature wear on the bit

Ensure the bit is used within its intended torque limits. If using with a power tool, utilize a clutch setting to avoid over-torquing. Check for any obstructions causing excessive friction.

Extraneous rust appearing on bit or screw

Ensure the bit and screw are both made of stainless steel. Avoid using the bit with standard steel screws or storing it alongside carbon steel tools. Clean and dry the bit thoroughly after each use.

Pros and Cons

Pros

  • Extends the lifespan of hexagon socket screws by preventing damage.
  • Reduces wear on the bit itself due to the torsion zone.
  • Prevents 'extraneous rust' when used with stainless steel screws.
  • Offers a more secure fit and reduces the risk of slipping.
  • High-quality stainless steel construction ensures durability.

Cons

  • Primarily designed for hexagon socket screws; not a general-purpose bit.
  • Requires a compatible 1/4" hexagon drive holder.
  • May be more expensive than standard bits due to specialized features.

Setup, Compatibility & Care

Setup: Simply insert the 1/4" hexagon shank of the Wera 3840/1 TS Hex Bit into a compatible 1/4" hex driver or power tool holder that adheres to DIN ISO 1173-D 6.3 standards. Ensure the bit is fully seated in the holder for secure operation.

Compatibility: This bit is designed for use with hexagon socket screws (Allen screws). It is compatible with standard 1/4" hex drive tools and chucks. For optimal results and to prevent extraneous rust, use this bit with stainless steel screws and tools.

Care: After use, clean the bit with a dry cloth to remove any debris. Store in a clean, dry environment. For prolonged use with stainless steel, avoid contact with carbon steel tools to prevent rust transfer.

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