Description:

Key Features

Real Diamond GripTru Diamond Grit puts a real diamond coating on the tip for up to 50X more grip, so the bit stays seated instead of camming out.Up to 100X Longer LifeThe diamond-coated tip resists wear far longer than a standard drive bit, which means fewer bit swaps in the middle of a job.Built for Impact DriversAn Increased Torsion Zone and Impact Strong construction absorb impact torque so the tip does not snap under load.

Overview

The Diablo 2 in. Demon Torx T40 Drive Bit (model DSDT402B) is built for pros and serious DIYers. This is a premium screwdriving bit designed for high-torque fastening in wood, metal and general construction with impact drivers and drills.

Demon is Diablo's top drive bit line, and the difference is the tip. The real diamond coating increases friction in the screw recess for up to 50X more grip than a standard bit. On the job that means the bit stays engaged when you lean on an impact driver instead of riding up and chewing the screw head.

That same coating protects the tip from wear for up to 100X longer life in demanding screwdriving. A precision Grip Point Tip seats tightly in the fastener, while the Increased Torsion Zone in the shaft flexes to soak up impact torque so stress does not concentrate at the tip, which is where most bits crack.

Optimized heat treatment strengthens the core, a rust protection coating keeps it working in damp jobsite conditions, and laser-engraved size markings plus color-coded rings make the right bit easy to grab.

The 2 in. length is the everyday workhorse size: long enough to clear a bit holder or chuck, short enough to keep the driver close to the work. The 1/4 in. hex shank fits any quick-change chuck, magnetic bit holder or drill chuck.

This is the bulk version, sold as a single bit without a retail card. It is the cheapest way to restock the bits you burn through most.

Buy it if you are framing, decking, installing cabinets, running electrical or doing mechanical work where screws go in all day. If you are burning through standard bits every week, Demon is where the cost per screw comes down.

Key Specifications

Compatibility

Bit Interface1/4 in. hex shank fits quick-change chucks, magnetic bit holders and standard drill chucksToolsImpact drivers and drills, cordless or cordedFastenersTorx T40 recess screws

Built For

CarpentryConstructionDeckingCabinet InstallationElectricalMechanical ContractingRemodelingFacilities Maintenance

Pro Tip

Keep steady pressure straight in line with the screw and the diamond grit does the rest, even on an impact driver at full speed. On a screw with a damaged head, the extra grip is often enough to back it out.

Tool Nut's Take

Tool Nut's Take

The Diablo 2 in. Demon Torx T40 Drive Bit: The Bit You Stop Replacing

Real diamond grit on the tip is the biggest upgrade in drive bits in years, and Demon puts it on a bit tough enough for impact drivers.

• Who it's for: Pros driving fasteners all day with an impact driver.
• Why it stands out: Diamond-coated tip for up to 50X grip and up to 100X life, plus a torsion zone built for impacts.
• Worth knowing: It costs more than a standard bit, but one Demon outlasts a pile of them.

Common Questions

• Can I use this in an impact driver? Yes. Impact Strong construction and the Increased Torsion Zone are built for impact drivers as well as drills.
• What is Tru Diamond Grit? A real diamond coating on the tip that increases friction in the screw head for up to 50X more grip and resists wear for up to 100X longer life than standard drive bits.