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
Is there a formula for calculating th...
Experimental Formulas for Estimating Thrust Force, Torque, and Required Power When considering the clamping method or fixture design for a workpiece, it is ... 詳細表示
What is the drill step increment for ...
External Lubrication; ・For vertical machining centers: No step drilling up to 3D. Beyond 3D, use step increments of 1D to 2D as a guideline. (D = drill dia... 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
Is there a tool to remove a broken tap?
Yes. Please use the “EX-H-DRL” Tap Removal Drill (also known as the Hard Drill). This drill is designed to crush the core of the broken tap and remove it. M... 詳細表示
What is the feed rate of a drill?
Feed rate is how far the tool moves per minute. The unit of feed velocity (Vf) of the drill is (mm/min). The feed rate can be calculated by multiplying the... 詳細表示
What is step feeding? G83 Step feeding is the action of stopping the hole drilling in the middle, taking the drill out of the hole once, and then drilli... 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
How many corners can I use for insert...
The inserts of PD drills (P2D, P3D, P4D, P5D) can be used in 4 corners, and the center cutting edge and peripheral cutting edge are the same chip , so it is ... 詳細表示
A center drill is a tool for machining center holes, which is required when a tailstock mounted on a tailstock is used mainly on a lathe to support the c... 詳細表示
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