Meet the Diablo DHS4125 4-1/8" Bi-Metal Hole Saw—a next-generation drilling solution designed to boost speed, depth, and efficiency on the job site. Built to pair with Diablo’s innovative hole saw system and mandrel, this saw delivers faster cutting performance and greater productivity, helping you tackle deep holes with fewer passes.

Key advantages that set it apart

• Maximum depth in a single pass: extended cutting length lets you bore deeper holes without stopping to change tools or rework.
• Variable Tooth Design: optimized tooth geometry for faster material removal and cleaner results.
• Effortless mounting: a streamlined hole saw system and mandrel design simplify attachment for quick, secure setup.
• Tool-free plug ejection: clear debris without fiddling with tools, keeping your workflow uninterrupted.
• Durable bi-metal construction: built to stand up to demanding drilling tasks across common materials.

Who benefits from the DHS4125

Designed for professionals and serious DIYers who frequently need deep, precise holes, this hole saw excels on electrical, plumbing, HVAC, and carpentry projects where speed and reliability matter. If you value fewer tool changes, faster cuts, and deeper reach, this Diablo hole saw is a strong fit.

Practical usage and care

• Utilize the compatible Diablo system for fast, repeatable mounting and consistent results.
• Leverage the longer cutting length to reduce passes and improve overall drilling efficiency on deep-hole tasks.

Specifications at a glance

• Diameter: 4-1/8" (105 mm)
• Bi-Metal construction for durability
• Designed for use with the Diablo hole saw system and mandrel
• Tool-free plug ejection for quick debris removal