What tools are used to remove breakag...
What are the tools for breakage Tap removal? Breakage Tap Refers to the drill "EX-H-DRL" for removal. This drill breaks the core of the broken Tap and r... 詳細表示
Do you need to Pilot hole drill for l...
Do you need to Pilot hole for large drilling? If you have enough mechanical horsepower, you don't need Pilot hole . It is recommended to drill holes from a... 詳細表示
The drilled hole has a polygonal shap...
The drilled hole has a polygonal shape. Why? This may be due to runout during drilling. (1) Runout when installing the drill. Solution: Keep the installat... 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 feed rate of a drill?
The feed rate is the number of millimeters that the tool moves in one minute. The unit of feed velocity (Vf) of the drill is (mm/min). The feed rate can be... 詳細表示
Do you need drilling centering?
Do you need drilling centering? Centering is used to improve hole position accuracy and to reduce unstable behavior during hole entrance machining. Unless ... 詳細表示
Thinning is a process in which the chisel edge (the non-cutting edge) of the tip of the drill is thinned so that the cutting edge is applied to the center of... 詳細表示
What do 2D, 3D, 4D, and 5D mean?
What does 2D, 3D, 4D, and 5D mean? D stands for tool diameter. It is expressed as several times the depth and length of the tool diameter, and is express... 詳細表示
The effect of the twist angle of the ...
What is the effect of the torsion angle of a drill? As for the effect of the helix angle, the standard twist is 30°. For weak twisting, the sharpness i... 詳細表示
What is point angle Effects of Drill...
What is point angle Effects of Drill point angle point angle is the angle of the tip of the drill. In general, 118° is the standard for high-speed steel, a... 詳細表示
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