The Benchmark Abrasives 3/4" x 16" spade bit is built for wood-boring applications that require substantially more reach than a standard-length bit. Precision ground from a solid piece of heat-treated high-speed steel, it combines durable construction with a self-centering cutting point that helps locate the hole and establish a controlled start.
The extended 16" overall length makes it useful for reaching through deeper framing, structural members, and other hard-to-access wood applications. Double cutting flutes help remove material efficiently, while the cavity and fisheye hole assist with clearing chips and debris. A 1/4" ball-groove quick-change hex shank provides secure tool engagement with compatible rotary drills and compatible impact drivers.
Product Specifications
Specification
Details
Cutting Head Diameter
3/4"
Overall Length
16"
Shank Size
1/4"
Shank Style
Ball-Groove Quick-Change Hex
Material
Heat-Treated High-Speed Steel
Cutting Geometry
Double Cutting Flutes
Quantity
1 Piece
Features
Extended 16" overall length provides additional reach for deep or obstructed wood-boring applications
Heat-treated high-speed steel construction for durable wood-boring performance
Precision ground from a solid piece for consistent cutting geometry
Self-centering cutting point helps locate the hole and initiate drilling
Double cutting flutes provide efficient material removal
Cavity and fisheye hole help clear chips and debris
When using a hammer drill, operate in rotary drill mode with hammer action turned off. Always remain within the tool manufacturer's stated wood-boring capacity.
Because of the extended 16" overall length, confirm adequate clearance before starting. Begin at low speed with the cutting point contacting the wood, keep pressure aligned with the bit, and avoid side loading or bending.
The 1/4" ball-groove hex shank also matches common 1/4" quick-change impact-driver interfaces. Confirm the specific driver securely retains the bit and is suitable for the intended application before use.
Safety Tips
Disconnect power or remove the battery before installing or changing the bit.
Make sure the bit is fully seated and securely retained before operation.
Check that there is sufficient clearance for the full 16" overall length before starting.
Begin drilling at low speed with the cutting point contacting the workpiece.
Secure the workpiece before drilling.
Keep drilling pressure aligned with the bit and avoid side loading or bending.
Reduce feed pressure as the bit approaches breakthrough to help limit tear-out.
For cleaner exit holes, clamp a scrap backing block behind the workpiece when practical.
Stop the tool if the bit stalls and determine the cause before restarting.
Wear appropriate eye and hearing protection and follow all power-tool manufacturer safety instructions.
The Benchmark Abrasives 3/4" x 16" spade bit is built for wood-boring applications that require substantially more reach than a standard-length bit. Precision ground from a solid piece of heat-treated high-speed steel, it combines durable construction with a self-centering cutting point that helps locate the hole and establish a controlled start.
The extended 16" overall length makes it useful for reaching through deeper framing, structural members, and other hard-to-access wood applications. Double cutting flutes help remove material efficiently, while the cavity and fisheye hole assist with clearing chips and debris. A 1/4" ball-groove quick-change hex shank provides secure tool engagement with compatible rotary drills and compatible impact drivers.
Product Specifications
Specification
Details
Cutting Head Diameter
3/4"
Overall Length
16"
Shank Size
1/4"
Shank Style
Ball-Groove Quick-Change Hex
Material
Heat-Treated High-Speed Steel
Cutting Geometry
Double Cutting Flutes
Quantity
1 Piece
Features
Extended 16" overall length provides additional reach for deep or obstructed wood-boring applications
Heat-treated high-speed steel construction for durable wood-boring performance
Precision ground from a solid piece for consistent cutting geometry
Self-centering cutting point helps locate the hole and initiate drilling
Double cutting flutes provide efficient material removal
Cavity and fisheye hole help clear chips and debris
When using a hammer drill, operate in rotary drill mode with hammer action turned off. Always remain within the tool manufacturer's stated wood-boring capacity.
Because of the extended 16" overall length, confirm adequate clearance before starting. Begin at low speed with the cutting point contacting the wood, keep pressure aligned with the bit, and avoid side loading or bending.
The 1/4" ball-groove hex shank also matches common 1/4" quick-change impact-driver interfaces. Confirm the specific driver securely retains the bit and is suitable for the intended application before use.
Safety Tips
Disconnect power or remove the battery before installing or changing the bit.
Make sure the bit is fully seated and securely retained before operation.
Check that there is sufficient clearance for the full 16" overall length before starting.
Begin drilling at low speed with the cutting point contacting the workpiece.
Secure the workpiece before drilling.
Keep drilling pressure aligned with the bit and avoid side loading or bending.
Reduce feed pressure as the bit approaches breakthrough to help limit tear-out.
For cleaner exit holes, clamp a scrap backing block behind the workpiece when practical.
Stop the tool if the bit stalls and determine the cause before restarting.
Wear appropriate eye and hearing protection and follow all power-tool manufacturer safety instructions.
Frequently Asked Questions
The longer overall length provides additional reach for wood-boring applications where a standard-length bit cannot easily access the drilling location.
You can use this bit with corded or cordless drills that accept a 1/4" hex shank and can handle a 1/4" spade bit in wood. Compatible examples include: DEWALT: DCD800, DCD805, DCD991, DCD996, DCD791, DCD796. Milwaukee: 2903-20, 2904-20, 3403-20, 3404-20. On a hammer drill, use regular drill mode with hammer action turned off.
No. The 16" measurement is the overall length of the bit, not the usable drilling depth.
Yes. Start at low speed with the cutting point against the wood, maintain pressure in line with the bit, and avoid excessive side pressure or bending.
Yes, when the drill has a compatible chuck and sufficient wood-boring capacity. Use rotary drill mode with the hammer function turned off.
Yes, with a compatible 1/4" quick-change hex holder. Make sure the holder locks onto the shank and follow your driver manufacturer's guidance for wood drilling with this bit size.
No. This spade bit is designed for wood. Choose a bit made for metal or masonry for those materials.
Reduce feed pressure near breakthrough and, when possible, clamp a scrap backing block against the exit side of the workpiece.
A Benchmark-specific maximum RPM or diameter-based operating-speed chart is not currently published. Follow the drill manufacturer's instructions and begin the extended-length bit at low speed with the cutting point against the workpiece.
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