Teng Tools 1/4 Hex Bits 89mm Hex 4mm ×1 — HEX8900401
Bits · HEX8900401
1/4 Hex Bits 89mm Hex 4mm ×1
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Why this one
Extra long, 89 mm
At 89 mm (3.5 in), this 4 mm hex bit reaches deeply recessed hex socket fasteners that standard or extended bits can't.
Hardened precision tip
The hardened precision tip maintains accurate engagement in the fastener.
1/4 inch hex shank
The 1/4 inch hex shank gives broad tool compatibility, and the bit is sold individually.
Read the full description
At 89mm in length, this 4mm hex bit is engineered for accessing deeply recessed hex socket fasteners that are beyond the reach of standard or extended bits. The hardened precision tip maintains accurate engagement and the 1/4" hex shank offers universal tool compatibility. Made in Taiwan.
- Bits & Drivers
Specifications
| Length | 3.5" (89 mm) |
Get it in a set
This bits also comes in this set, with the tools that go with it.
Specifications
| Size | 4 mm |
|---|---|
| Drive | 1/4" Hex |
| Part number | HEX8900401 |
Data sheet
Full details from Teng Tools. Download PDF
Lifetime warranty
Send a photo and your order number. Same-day shipping on replacements.
Ships from Texas
From our Fort Worth warehouse.
Questions?
Call (817) 767-3392.
Shipping
Free shipping on orders over $99. Orders are stocked, picked and shipped from our warehouse in Fort Worth, Texas — orders placed on business days ship same-day wherever possible.
Lifetime warranty
Teng Tools hand tools are backed by a lifetime warranty against manufacturing defects. Screwdriver bits and socket bits are consumables and are guaranteed to meet dimensional standards. Torque wrenches and air tools can be serviced and recalibrated on request — contact us to arrange it.
Returns
Not right for the job? Contact us within 30 days of delivery and we'll sort out a return or exchange. Tools must be unused and in their original packaging. Warranty claims are handled separately — a defective tool is our problem, not yours.
Why Teng Tools?
Swedish Design Since 1985
Trusted in 30+ countries. Designed in Sweden, built to ISO and DIN standards.
Shipped Fast from Texas
US warehouse in Fort Worth, so orders move fast. TAA approved for government and defense.
Lifetime Warranty
Something goes wrong? Send a photo and your order number — same-day shipping on replacements.
The Devil Is in the Detail
Satin-finish wrenches, through-blade screwdrivers, heavy-gauge storage — built to last.