The only punch specially designed to shatter tempered auto window glass for extrication, 40% more punching power (minimum 26 lbs.)

Specially hardened replaceable steel tip tempered to a Rockwell hardness of C60 resists dulling. Force is adjustable by twisting rear cap for precise control. Lightweight corrosion resistant aluminum barrel has a knurled finish for positive grip. Removable pen-type pocket clip

Length 5", diameter 5/8"