# Call at +8619957767763

# Leave a message dennis@bestwin-tools.com

Pneumatic Tools Manufacturers
Blog
Home

Blog

Some knowledge about drilling

Some knowledge about drilling

  • Jun 3,2020

1. why the lower the required speed of the same type of hole opener?
Pistol drill or drill speed display is generally RPM or r/min, is the speed per minute. But the speed at which each tooth turns is called linear speed. Line speed = speed * radius *2*. That is, the greater the diameter, the longer the path of each ring and tooth tip. The higher the friction and heat, the more easily the tip of the tooth is damaged.
2. why bigger hole is easy to slip or handle broken wire
Open due to slippery silk or handle broken hole is generally excessive torque, the larger diameter, the greater torque, the torque is greater. The diameter of the shank increases exponentially when the diameter of the hole is doubled, and the increase in the diameter of the shank from 10mm or 12mm to 16mm increases only a few mm. So the shank to bear large torque, easy to slide or broken wire.
The main factors affecting the number of holes are the same material and the diameter. The linear speed and torque determine the number of holes to a great extent. Try to reduce the speed, as far as possible to avoid opening hole damage.

www.bestwin-tools.com

© Copyright: 2020 Yueqing Baiying Hardware Tools Co.,Ltd. All Rights Reserved.

IPv6 network supported

IPv6 network supported

Friendly Links :

www.dyyseo.com
top

Leave a Message

Leave a Message

    If you have questions or suggestions,please leave us a message,we will reply you as soon as we can!