Diablo Spade Bit DSP3040 3/4 Inch x 16 Inch SPEEDemon (1/4 Inch Hex Shank Self Feeding Speed Tip Impact Rated Extended Wood Boring Drilling)

Diablo DSP3040 3/4-Inch x 16-Inch SPEEDemon Impact Spade Bit

The Diablo DSP3040 3/4-Inch x 16-Inch SPEEDemon Impact Spade Bit is an extended-reach wood boring accessory engineered to drill high-speed wire and pipe pass-through holes across structural lumber. Featuring a self-feeding SPEED-TIP thread design and an angled spur cutting edge on an impact-rated 1/4-inch hex shank, this 16-inch high-speed steel bit attaches to cordless impact drivers and drill drivers. Equipped with a curved chip-evacuation paddle to clear debris during deep boring passes, this 3/4-inch wood bit solves bit binding, manual pushing fatigue, and splintered hole blowout challenges during residential electrical and plumbing rough-ins.

Best Used For:

• Deep Wall Stud & Joist Rough-Ins: Boring 3/4-inch utility pass-through holes across multiple stacked 2x4 studs and double top plates for electrical wiring.
• Floor Joist Pipe & Conduit Running: Drilling deep horizontal holes through 2x10 joists and engineered timber for PEX plumbing lines and NM-B cabling.
• High-Torque Impact Driver Drilling: Driving rapid wood-boring bits continuously using 1/4-inch quick-change impact drivers without shank slipping.

Key Performance & Safety Features

• Self-Feeding SPEED-TIP Thread: Threaded center point pulls the bit through softwood and hardwood automatically to minimize operator push effort.
• Optimized Curved Paddle Geometry: Curved paddle profile ejects wood chips rapidly from deep holes to prevent binding and reduce battery power draw.
• Impact Strong 1/4-Inch Hex Shank: Heavy-duty hex shank absorbs intense impact driver torque spikes without snapping or rounding off in chucks.
• Angled Spur Cutting Edges: Scores the outer circumference of the hole before boring to deliver clean entry edges with minimal backside wood splintering.
• Extended 16-Inch Overall Length: Long reach shaft eliminates the need for bit extensions when drilling through thick timber or deep stud bays.
• High-Speed Steel Material Composition: Premium heat-treated steel construction retains sharp cutting edges across high-volume wood boring applications.

What's Included

• (1) Diablo DSP3040 3/4 in. x 16 in. SPEEDemon™ Spade Bit

Technical Specifications

Pro-Tip: Allow the self-feeding SPEED-TIP thread to pull the 16-inch spade bit through wall studs naturally without forcing driver pressure to prevent motor stall and maximize battery run time.