The Diablo 10-1/4" x 40-Tooth General Purpose Beam Saw Blade for Wood is engineered specifically for worm drive saws equipped with a 5/8" diamond knockout arbor, delivering the power and precision needed for heavy-duty framing, beam cutting, and structural lumber work. Built by Diablo with Italian craftsmanship, this 40 ATB blade handles demanding crosscuts and rip cuts through pressure treated wood, plywood, rafters, beams, posts, oak, pine, OSB, and laminated beams - making it a go-to choice for framing contractors, deck builders, and serious DIYers who need consistent, clean results on thick stock. It is capable of slicing through 4x headers and fence posts, sandwiched 2x headers, exposed deck and porch beams, and up to 7 sheets of 1/2" plywood in a single pass.

Key Features

• TiCo Hi-Density carbide teeth - a high-performance carbide formula engineered for each specific application, delivering sharper cutting action and longer edge retention across a wide range of wood materials
• Perma-SHIELD Non-stick Coating - protects the blade plate from heat buildup, pitch gumming, and corrosion, reducing friction and extending the usable life of the blade in pressure treated and resinous wood applications
• Super thin laser cut kerf at.087" - removes less material per cut, resulting in faster feed rates, reduced motor strain on worm drive and circular saws, and cleaner cut surfaces
• Tri-metal shock resistant brazing - bonds carbide tips to the steel plate with exceptional toughness, allowing the blade to withstand extreme impact when cutting through knotted lumber, nails, and dense laminated beams
• Hardened steel body at.063" plate thickness - maintains blade flatness and rigidity under load, contributing to a longer service life and a consistently sharp cutting edge even during extended heavy use
• 18 deg. hook angle - an aggressive geometry that promotes fast, efficient stock removal during both crosscuts and rip cuts in framing and structural lumber
• 7,000 maximum RPM rating - compatible with high-speed worm drive saws, cordless circular saws, and corded circular saws for broad tool versatility on the job site

Why This Product

• Designed specifically for worm drive saws with a 5/8" diamond knockout arbor - this is not a generic circular saw blade adapted for beam work, but a purpose-built tool that matches the torque and geometry of worm drive platforms for reliable performance on thick, structural cuts
• Cuts through the thickest framing stock in a single pass - handling 4x headers, fence posts, sandwiched 2x headers, exposed beams, and multiple sheets of 1/2" plywood without stopping mid-cut, saving significant time on large framing and deck projects
• Versatile enough for crosscuts and rip cuts across hardwoods, softwoods, pressure treated lumber, plywood, OSB, and laminated beams - one blade covers the full range of materials found on residential and light commercial job sites
• The combination of Perma-SHIELD coating and TiCo carbide reduces blade changes and downtime by resisting the heat, gumming, and corrosion that commonly degrade blades in pressure treated and outdoor lumber applications

Specifications

• Brand: Diablo
• Diameter: 10-1/4"
• Teeth: 40 ATB
• Arbor: 5/8"
• Kerf: .087"
• Hook Angle: 18 deg.
• Plate: .063"
• Maximum RPM: 7000
• Compatible Tools: Circular Saw; Cordless Circular Saw; Wormdrive Saw
• Compatible Materials: Hardwoods; Softwoods; Pressure Treated; Plywood; OSB; Laminated Beams
• Country of Origin: Italy

Available Pack Options

• D1040W: 1 Ea
• D1040W -8: 8 Pk

Approved Applications

• General Purpose Wood Cutting

Frequently Asked Questions

What type of saw is this blade designed for?

This blade is specifically designed for use on a worm drive saw with a 5/8" diamond knockout arbor. It is also compatible with corded circular saws and cordless circular saws that accept a 5/8" arbor and operate within the 7,000 maximum RPM limit.

What is the thickest material this blade can cut in a single pass?

This blade can cut through 4x headers and fence posts, sandwiched 2x headers, exposed beams for decks and porches, and up to 7 sheets of 1/2" plywood in one pass when used on a compatible worm drive saw.

Can this blade be used on pressure treated lumber?

Yes. This blade is rated for use in pressure treated wood, and the Perma-SHIELD Non-stick Coating is specifically designed to protect against the heat, gumming, and corrosion associated with cutting treated lumber and resinous materials.

What is the tooth configuration and hook angle on this blade?

The blade features 40 ATB (Alternate Top Bevel) teeth and an 18 deg. hook angle, which provides an aggressive cutting geometry suited for fast crosscuts and rip cuts through a wide variety of dimensional lumber, plywood, OSB, and laminated beams.