5 Inch Automatic Center Pin Punch เหล็กนำศูนย์ออโต้

 Auto Center Puch
5 Inch Automatic Center Pin Punch Spring Loaded Marking Starting Holes Tool 

Specification: 

Material: Knurled steel body+alloy stell point 

Length: approx. 127mm

Simple And Accurate To Use, Semi Automatic Window Breaking Device

Knurled handle prevents slipping

Gives precise starting point on steel and other solid materials

Allows you to easily mark work using one hand prior to drilling which will prevent the drill from slipping

Automatic Spring Loads Then Releases At Top Of Cycle With Force To Create Centre Punch (No Hammer Needed) 

Spring pressure can be adjusted by simply rotating the knurled top of the punch

Automatic design cleanly and accurately punches steel wood and plastic 

Package included: 

1 x automatic centre punch (other accessories are not included) 

Note: 

Please allow 1-5mm errors due to manual measurement 



https://en.wikipedia.org/wiki/Automatic_center_punch




https://en.wikipedia.org/wiki/Automatic_center_punch