What does drill feed rate (mm/rev) mean?
It indicates how many millimeters the drill advances per one revolution. In OSG’s drill catalog, recommended feed rates (mm/rev) are listed as ranges for ma... 詳細表示
Drilling holes in titanium materials ...
It is not possible to select a suitable tool based on the information of titanium material alone. There are titanium materials with different properti... 詳細表示
What is a shank with a tang? It is a shank with two flat sides at the end of the shank. The tang is mainly used for detenting. For our drills, only ... 詳細表示
What is a back taper? The outer diameter of the drill is tapered from the tip to the shank, and it is attached to avoid friction with the inner surface ... 詳細表示
What is the PD Series of Indexable Dr...
PD is a high-efficiency indexable drill with oil holes that pursues chip discharge. (Indexable: chip interchangeable, meaning throwaway) The high chip evac... 詳細表示
What is a drill with oil holes? inte...
What is a drill with oil holes? internal coolant supply ？ A drill with an oil hole is a drill that has a hole (= oil hole) through the inside of the drill ... 詳細表示
What is pick milling (Peck Processin...
What is peck feeding (High-speed step feeding) G73 peck feeding is a method of forcibly separating chips by separating the cutting edge from the machining p... 詳細表示
The effect of the helix angle of the ...
The standard helix angle is 30°. A low helix angle reduces sharpness but increases cutting‑edge strength. A high helix angle provides a sharper edge but lo... 詳細表示
Do you need to drill a pilot hole bef...
Do you need to Pilot hole for large drilling? If you have enough mechanical horsepower, you don't need Pilot hole. When machine horsepower is insufficient,... 詳細表示
Is a centering process always necessa...
Centering is performed to improve hole position accuracy and to suppress unstable behavior at the hole entrance during machining. However, if there is no st... 詳細表示
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