Pros
- Cuts quickly through hard metals that dull traditional bi-metal hole saws.
- Integrated spring ejects slugs automatically after drilling.
- Carbide teeth maintain sharpness through repetitive sheet metal cuts.
- Two-pack provides backup convenience for larger job sites.
Cons
- Carbide teeth can chip if subjected to harsh impacts or angled drilling.
- Limited to 0.47-inch cutting depth, designed primarily for sheet materials up to 1/8-inch thick.
- Requires controlled drill speeds and lubrication on dense metals for optimal tool life.
The DKIBBITH 1-1/2 Inch TCT Hole Saw Set is an aggressive cutting solution engineered for clean, rapid drilling through tough metals. Designed for metalworkers, electricians, plumbers, and homeowners, this two-pack is built to handle stubborn materials that quickly wear down standard bi-metal saws. Whether running electrical conduit, modifying metal enclosures, or enlarging deadbolt holes in steel doors, these cutters are tailored for fast and precise performance.
Equipped with cemented tungsten carbide teeth, these cutters slice through stainless steel, mild steel, aluminum, brass, and rigid plastics with minimal burring. The titanium-coated split-point pilot bit provides steady centering to prevent skittering across smooth surfaces. An integrated ejection spring reliably pushes metal slugs out after each cut, eliminating the frustrating chore of manually prying debris out of the cutter cup.
While the heavy-duty tungsten carbide construction offers superior cutting speed and heat resistance, it requires proper handling. Carbide is exceptionally hard but can be brittle under high shock, meaning users should run drills at moderate speeds and maintain a flat, perpendicular angle to avoid chipping teeth. The 0.47-inch maximum cutting depth restricts these cutters to sheet metals and thin-walled tubes up to 1/8-inch thick, making them unsuitable for thick structural lumber or deep stock.
Overall, the DKIBBITH 2-Pack delivers impressive cutting capability and durability when used with proper drilling technique and cutting oil. For anyone needing dependable, clean holes in tough sheet steel, this set serves as a durable and cost-effective upgrade over conventional hole saws.
Cutter Diameter: 1-1/2 Inch (38mm)
Cutting Depth: Up to 0.47 Inch (12mm) / Max Material Thickness 1/8 Inch (3mm)
Tooth Material: Tungsten Carbide Tipped (TCT)
Shank Size: 3/8 Inch (10mm)
Pilot Bit: Split-Point Titanium-Plated with Ejection Spring
Compatible Tools: Handheld Drills, Drill Presses, Magnetic Drills, CNC Drilling Machines
To maximize the lifespan of your TCT hole cutters, always operate your drill at lower RPMs when working with stainless steel and dense alloys. High speeds generate excess heat that can degrade carbide tips.
Apply cutting oil or fluid during drilling to reduce friction and clear chips smoothly. Ensure the cutter enters the workpiece perpendicularly, avoiding side-to-side rocking which can cause premature tooth breakage.