HSS Hole Saw
Integrated Center Pilot Bit, Spring Ejection & Precision Metal Teeth
Engineered for aggressive cutting performance through tough metallic and synthetic materials, the SMT HSS Hole Saw Series delivers fast, clean, and burr-free circular cuts. Manufactured from premium High-Speed Steel, each cutter is equipped with an integrated center twist pilot drill bit to eliminate bit walking, paired with sharp outer cutting teeth and an internal ejection spring to automatically pop out cut slugs for rapid, continuous operation.
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Premium HSS Construction: Heat-treated High-Speed Steel body maintains sharpness and structural strength under high drilling friction.
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Integrated Center Pilot Bit: Split-point pilot drill ensures exact center positioning and prevents cutter walking on smooth metal surfaces.
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Built-in Slug Ejection Spring: Spring-loaded center mechanism automatically ejects cut metal discs for continuous, uninterrupted drilling.
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Three-Flatted Anti-Slip Shank: Precision shank geometry prevents slipping inside standard drill chucks under high torque loads.
✔ Metalworking & Electrical Essential: Ideal for sheet metal fabricators, electricians, HVAC installers, automotive mechanics, and bulk B2B supply.
Maximize drilling efficiency and hole accuracy with the SMT Professional High-Speed Steel (HSS) Hole Saw Set. Purpose-built for cutting clean, smooth circular holes through tough metals, pipes, and panels, this versatile hole cutter series provides superior speed and durability compared to standard bi-metal hole saws.
Each cutter features precision-ground HSS teeth engineered to shear cleanly through metal without snagging or binding. The integrated pilot bit guides the hole cutter accurately into the material, while the outer rim collar limits depth to prevent over-penetration. For maximum job-site speed, the internal spring mechanism automatically forces out metal core plugs as soon as the cut is complete, saving valuable time between holes.
Key Features & Benefits
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 Rapid & Smooth Metal Cutting: Sharp, heat-treated HSS teeth cut through steel sheets, stainless tubing, and aluminum cleanly with minimal burrs.
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Center-Lock Pilot Bit: Hardened center drill bit creates a accurate anchor point, preventing bit walk on curved pipes or polished metal panels.
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Automatic Slug Ejection: Internal ejection spring pushes out core metal discs instantly, eliminating tedious manual slug removal.
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Non-Slip Grip Shank: Triangular / 3-flatted shank profile locks tightly into drill chucks to ensure full power transfer without rotational slippage.
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Depth-Stop Collar Design: Built-in shoulder flange prevents over-drilling beyond panel thickness, protecting internal components behind walls or control boxes.
Technical Specifications
| Parameter | Specification Details |
| Product Type | Heavy-Duty HSS Metal Hole Saw Cutter |
| Cutter Material | High-Grade Heat-Treated High-Speed Steel (HSS) |
| Pilot Bit | Integrated HSS Twist Center Drill Bit |
| Feature Mechanism | Internal Slug Ejection Spring |
| Shank Type | 3-Flatted Anti-Slip Shank |
| Diameter Availability | Comprehensive size range from 12mm up to 60mm+ |
| Target Materials | Stainless Steel Sheet, Iron Plate, Aluminum Alloy, Brass, Copper, PVC, Fiberglass |
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