Teng Tools 1/4" ROB Impact Bit 89mm ROB3 (1 Piece) — ROBP8900301

Teng Tools 1/4 Hex Shank ROB3 Square Drive Impact Bit - Robertson Square Recess Bit - 89 mm (3.5 in) - ROBP8900301

$7.99
Sale price  $7.99 Regular price 
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Teng Tools 1/4" ROB Impact Bit 89mm ROB3 (1 Piece) — ROBP8900301

Teng Tools 1/4 Hex Shank ROB3 Square Drive Impact Bit - Robertson Square Recess Bit - 89 mm (3.5 in) - ROBP8900301

$7.99
Sale price  $7.99 Regular price 
Out of stock
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When a square drive bit starts slipping under heavy torque, you risk rounding out both the bit and the fastener. This Teng Tools ROB3 impact bit provides a precise, fresh replacement in the larger Robertson size used on structural screws, lag-style deck fasteners, and framing hardware. At 89 mm (3.5 in) in overall length, the bit gives you working clearance in deep countersinks and tight framing angles. The 1/4 inch hex shank drops into any standard quick-change chuck or magnetic bit holder, so there are no adapters to lose and no time wasted swapping holders on a busy job site. The Robertson square recess is one of the most reliable fastener profiles in construction because the bit sits deep inside the screw head and resists cam-out under high torque. That positive engagement translates directly into fewer stripped screws, less wrist fatigue, and a cleaner finished surface. Sold as a single piece, this bit lets you replace just the ROB3 instead of buying a full assortment. Toss one in your pouch as a spare and you will never have to pause a framing job or deck build to search for a replacement bit.

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Specifications

TypeBits
CategoryBits
Drive size1/4"
Part numberROBP8900301
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.

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