The 29th Jinan International Machine Tool Exhibition

Ruilif Tools (Qingdao) Co., Ltd. will participate in the 29th Jinan International Machine Tool Exhibition held on March 17–20, 2026 at Jinan Yellow River International Convention and Exhibition Center. Visit us at Hall N4 Booth C206 to explore our modular drilling systems and crown drills.

The 14th China CNC Machine Tool Exhibition (CCMT 2026)

Ruilif Tools (Qingdao) Co., Ltd. will participate in CCMT 2026,

What is the difference between alloy drill bits and high-speed steel drill bits?

Alloy is a material with ultra-high hardness and excellent wear resistance. Its disadvantage is that it is prone to breakage, but its wear resistance is extremely strong. Good alloy materials are very useful and expensive. High speed steel drill bits are very good in terms of durability and wear resistance. Generally speaking, for factories in need, high-speed steel drill bits are actually more cost-effective because of their low unit price and decent quality. In general, using high-speed steel drill bits is good, unless it comes into contact with hard materials that cannot be machined by high-speed steel drill bits, and then alloy drill bits are chosen.

How many types of drill bits are there by purpose?

Drill bits are divided into two types: hard alloy drill bits and diamond drill bits. The cutting edge hardness of hard alloy drill bits is HB250~300, characterized by wear resistance and impact resistance, and can be used to drill various hard rocks. The cutting edge hardness of diamond drill bits is HB1000~3000, which is characterized by no wear and can be used to drill various soft rocks. Drill bit is a tool used in geological exploration, mining, water conservancy engineering, railway bridge and other engineering construction. There are many types of drill bits, including geological drill bits, engineering drill bits, and petroleum drill bits according to their uses; According to the structural form, there are three main types: integral (integral hard alloy drill bit), welded (integral diamond drill bit), and clamp type (integral hard alloy drill bit, integral diamond drill bit). According to the drilling method, they are further divided into active drilling drill bit and passive drilling drill bit.

What is the difference between woodworking drill bits and metal drill bits?

Different materials: Black drill bits are generally used for drilling metal, and the drill bit material is usually high-speed steel. When drilling on general metal materials (alloy steel, non alloy steel, cast iron, cast steel, non-ferrous metals), metalworking drill bits are used in conjunction.