TCT Hole Saw Kit, 20mm Tungsten Carbide Hole Saw, Hole Cutter Drill Bits

Description

Designed to install on the hand-held electric drills, bench drills, electromagnetic drills, pneumatic drills and other rotating machinery to saw hole on the metal material.
High performance
The drill bit is sharp enough to drill a new hole with minimal effort without chips or breakout, energy-saving and time-saving. Be attention to keep the drill running smoothly at a low speed, or pre-drill the center hole to extend the life of the cutter. Please add coolant or water when processing stainless steel and steel metal plates above 5mm.
Exquisite workmanship
Designed with efficient three-blade, including outer blade, middle blade and inner blade. Provide uniform force and smooth punching without burrs, uneasy to break with low-noise working.
Premium material
Made of superior M35 high-speed steel with plated titanium material, the center drill is sharp and wear-resistant, accurate positioning, high temperature resistance. Tungsten carbide cemented alloy-made cutter has been quenched at high temperature process to achieve good hardness and improve the efficiency of hole opening.
Widely use