Unibor Speedcut carbide-tipped hole saw with 1/4 inch impact shank, product photo

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Unibor Speedcut Carbide-Tipped Hole Saw

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SKU: 28118

Size: 9/16 X 3/16" Unibor Speedcut Carbide Tipped Hole Saw, Impact Shank

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$34.31

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Carbide Tipped Teeth: Tungsten carbide (TCT) teeth cut up to 30% faster and last 10X longer than bi-metal hole saws, per Unibor's category page copy.
Impact Driver Ready: Fitted with a 1/4" impact shank designed for use in impact drivers and battery drills, so no separate arbor/adapter is needed.
Multi-Metal Capable: Rated by Unibor for stainless steel, construction steel, and truck chassis work, as well as electrical applications.
Spring-Loaded Core Ejection: A spring-loaded center drill ejects the slug/waste core automatically for faster repeat cuts.
Shallow 3/16" Depth of Cut: Depth of cut is 3/16" (per price-file SKU descriptions), suited to thin-gauge sheet and plate rather than thick structural stock.

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Brand	Unibor
Series	Speedcut (TCT SpeedCut)
Type	Carbide-tipped (TCT) hole saw
Material Rated For	Stainless steel, construction steel, truck chassis, electrical work
Diameter Range	9/16" – 1.3/8" (see Size selector for exact SKU)
Depth of Cut	3/16"
Shank Type	1/4" impact shank (impact driver / battery drill ready)
Core Ejection	Spring-loaded center drill, automatic slug ejection

Key Information

Order Cutoff Time: 2:00 PM EST
Order Handling Time: 1–3 business days (Monday–Friday)
Transit Time: 1–7 business days (Monday–Friday)
Total Estimated Delivery Time: 3–11 business days (Monday–Friday)
Shipping Availability: Free Shipping On some Items In The Contiguous United States only

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Frequently Asked Questions

Carbide-tipped hole saws are heavy-duty cutting tools used to drill clean, large-diameter holes through tough, abrasive materials like stainless steel, cast iron, and high-strength metal that would quickly wear out a standard bi-metal saw.

Yes, a carbide-tipped hole saw will cut wood and is especially effective on nail-embedded or treated lumber that would quickly dull a standard wood-cutting blade.

Yes, carbide-tipped hole saws are designed to run in a standard handheld or magnetic drill; solid carbide tooling, by contrast, is generally reserved for specialized rigid setups.

A carbide-tipped hole saw can cut softer masonry like cinder block, stucco, and brick, but it struggles with dense poured concrete containing hard aggregate or rebar.

Diamond hole saws are best for ultra-hard, brittle materials like glass, porcelain, and ceramic, while carbide-tipped hole saws are built for tough, abrasive materials such as metal, wood, brick, and cement.

Tungsten carbide is roughly five times harder than standard steel and holds a cutting edge far longer, though diamond-tipped tooling is used for specialized stone and tile work.