Made from high speed cobalt for long-term using.
Titanium coating to reduce friction and heat.
Unique pagoda-shape, lightweight and portable.
Available for cutting holes in a variety of materials including steel, brass, wood, plastic, etc..
Easy to use, it will automatically works when you drill.
The ladder of its unique structure, a bit can open a variety of specifications of aperture.
Do not need to use center punch, compared with the ordinary twist drill is not easy to be broken.
Deburring, chamfering, elliptic hole enlargement, twist drill, the function of them was unable, but it is possible.
Model: ZHWEI HSS-Cobalt Round Shank Step Ladder Drill Cone Bit 4-32MM
Material: HSS Cobalt
1 x ZHWEI HSS-Cobalt Round Shank Step Ladder Drill Cone Bit 4-32MM
The overall ladder drill using CBN grinding whole manufacturing, the main material for high-speed steel, carbide, high precision machining,according to different processing conditions can be surface coating to extend tool life, add to enhance durability.