A high-resolution product shot of a single 3-1/2 inch black Diablo PH2 Phillips drive bit, highlighting the precision-milled tip, red brand band, and laser-etched PH2 size identifier on the hex shank.
The retail hanging card packaging for a single Diablo PH2 Phillips drive bit, showcasing a 3-1/2 inch length, Torque Resistant Design, and Impact Strong durability rating.
An action shot of a person using a cordless impact driver with a Diablo 3-1/2 inch PH2 drive bit to fasten a screw into a white metal plate mounted on a wooden stud.
A high-resolution product shot of a single 3-1/2 inch black Diablo PH2 Phillips drive bit, highlighting the precision-milled tip, red brand band, and laser-etched PH2 size identifier on the hex shank.
The retail hanging card packaging for a single Diablo PH2 Phillips drive bit, showcasing a 3-1/2 inch length, Torque Resistant Design, and Impact Strong durability rating.
An action shot of a person using a cordless impact driver with a Diablo 3-1/2 inch PH2 drive bit to fasten a screw into a white metal plate mounted on a wooden stud.
DIABLO

Diablo Phillips Driver Bit DPH23P1 3-1/2 Inch Impact Strong 1/4 Hex Shank Power Fasteners (50X Life MaxTorque Zone Framing Decking 1 Pack)

Only 1 left
SKU: DPH235P1
$2.99 USD

Description

Diablo Tools Logo

Diablo 3-1/2-Inch Impact Strong #2 Phillips Power Fastening Solution

The Diablo Phillips Drive Bit is an extended-reach 3-1/2-inch industrial fastening accessory engineered specifically for heavy-duty cordless impact drivers, utilizing advanced Impact Strong technology and an integrated MaxTorque Zone to absorb peak rotational stress while delivering up to 50 times longer service life than conventional bits. Designed for professional contractors and structural builders, this high-performance bit provides a secure, non-slip engagement that virtually eliminates cam-out and fastener strip-outs during demanding high-torque applications.

Best Used For:

  • Extended Reach Framing: Driving structural PH2 fasteners into deep stud cavities and tight framing corners where standard short bits cannot reach.
  • Heavy-Duty Deck Construction: Fastening long deck screws through dense treated lumber and composite materials under continuous high-torque impact loads.
  • Deep-Set Fastener Installation: Securing hardware brackets and recessed wood screws smoothly without scuffing surrounding material surfaces.

Key Performance & Safety Features

  • 50X Longer Life: Extreme durability and impact resistance designed to outlast standard driver bits in continuous heavy-duty work environments.
  • MaxTorque Zone: Specialized torque-absorption geometry strategically engineered to reduce peak stress at the tip and prevent sudden breakage.
  • Optimized Precision Tip: Maximizes surface contact with the fastener recess to ensure a secure, slip-resistant grip and eliminate cam-out.
  • Impact Strong Construction: Delivers superior shank stability and structural resilience built to handle aggressive cordless impact output.
  • Rust Protection Coating: Advanced corrosion-resistant barrier ensuring long-term durability across changing jobsite weather conditions.
  • Universal Compatibility: Standard 1/4-inch hex shank manufactured for a secure, wobble-free fit in all quick-change impact chucks.

What's Included

  • (1) Diablo DPH23P1 3-1/2 in. #2 Phillips Impact Strong Drive Bit

Technical Specifications

Brand Manufacturer Diablo Tools
Model Number DPH23P1
Screwdriver Head Style #2 Phillips (PH2)
Overall Bit Length 3-1/2 in.
Shank Size 1/4 in.
Shank Style Hex Shank
Impact Rating Yes (Impact Strong)
Torque Technology MaxTorque Technology
Coating Finish Rust Protection Coating
Material Construction Optimized Heat-Treated Steel
Performance Rating Up to 50X Standard Life
Package Quantity 1 Bit

Pro-Tip: Maintain firm, inline axial pressure when using 3-1/2-inch bits to maximize engagement depth in the fastener head and allow the MaxTorque Zone to fully absorb rotational impact peaks.