Internal watering alloy drill Ø7.4 OSG 311307401

• Gia công lỗ có dung sai chính xác cao;
• Tuổi thọ công cụ sử dụng lâu dài;
• Độ bền và độ cứng cao;
• Dòng mũi khoan được dùng chuyên khoan thép cứng (～55HRC).
• Chuyên dùng trong gia công khuôn mẫu.

Drilling alloy with internal irrigation Ø7.4 OSG 311307401 is made of stainless steel alloy, exquisitely processed, high hardness, drill bit is sharp, wear-resistant and has a long service life. Has many outstanding advantages compared to conventional drill bits:

• Smooth drill hole, low friction drilling process, low heat generation;
• Fast working speed, good chip removal ability;
• Sharp, sharp edge;

Cutting blade part: consists of separate tungsten chips welded together to the drill body using high-frequency welding technology. All teeth have the same cutting angle.

The body of the drill bit: made of solid steel will connect to the cutting blades with high-quality welding material but still ensure durability and firmness when used.

Drill bits have internal irrigation holes

OSG drill bit structure