HeeHoo 5Pcs 28 mm TCT Annular Cutter 35 mm Depth x 3/4" Weldon Flat Shank

Key features

• Eliminate Pilot Hole Hassles & Achieve Flawless Accuracy: Unlike standard twist drills that wander, this 3-flute annular cutter uses a 3-cutting edge geometry (Outer, Middle, Inner) to self-center instantly. Experience perfectly round, burr-free holes in steel plate on the very first try, without the need for tedious center punching or step drilling.
• Premium Carbide Teeth for Aggressive, Long-Lasting Cuts: Equipped with industrial-grade carbide tips brazed to a durable steel body, these core drill bits slice through mild steel, stainless steel, and alloy steel with ease. Maintain razor-sharp cutting performance and significantly extend tool life, even in high-heat drilling applications.
• Fast, Efficient Material Removal with 5-Piece Kit Value: Designed to remove only a ring of material (leaving a slug), this set requires less power and torque than twist drills. With 5 cutters and matching pilot pins included, you get a complete, ready-to-use kit that accelerates your workflow and saves you from buying single, expensive bits separately.
• Versatile 35mm Depth & Weldon Shank Compatibility: Featuring a standard 3/4" Weldon flat shank, these bits are perfectly suited for magnetic drills, drill presses, and machining centers. With a 35mm (1-3/8") cutting depth, they are ideal for structural steel fabrication, heavy equipment repair, and precise through-hole drilling.
• Balanced Cutting Action for Reduced Operator Fatigue: The 3-flute design evenly distributes cutting loads compared to traditional 2-edge designs. This reduces vibration and chatter, delivering a smoother cutting experience that enhances operator comfort and safety during long drilling sessions.

Specifications Item Type: Annular Cutters Quantity: 5 Pieces per set Material: Carbide teeth brazed to steel body Cutting Diameter: 12 mm – 80 mm Cutting Depth: 35 mm (1-3/8") Shank Types: 19 mm (3/4") Weldon Flat Shank Number of Teeth: 4-9 teeth (depending on diameter) Cutting Edge Geometry: 3 cutting edges (3-flute/lip design, Outer + Middle + Inner) Pilot Pin: 6.35 mm x 90 mm (for 12–16 mm annular cutters) or 7.98 mm x 90 mm (for 17+ mm annular cutters) Features: Balanced cutting load compared with 2-edge designs; High accuracy compared with twist drills Application: Used in magnetic drills and drilling machines to make fast, accurate holes through mild steel, stainless steel, alloy steel, aluminum. Unlike twist drills, it removes only a ring of material, leaving a solid slug. Recommended Machines: Magnetic drilling machines, drill presses, machining centers (Arbor adapters are required, sold separately) Package List 5 x Annular Cutters 5 x Pilot Pins

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