Diameter: about 12.7 mm/0.5"
Hardness: HRC58°~65°
Length: about 128 mm/5.03"
Material: Knurled Steel+ Alloy Steel
Color: black,silver,red,gold,blue
Included:1 x Automatic Centre Punch
Features:
Simple and accurate.
Knurled Steel treatment to prevent slipping.
The precise starting point for steel and other solid materials is given.
Allows you to use one hand easily working.
Mark will prevent from slipping before drilling.
Automatic spring loading and then release the cycle by force to create the center punch (without a hammer).
The spring pressure can adjust the knurling through simple rotation.
Automatic design of clean and accurate boxing steel wood and plastic.