Laser Chalk Bob IV
Part# 24402
The Laser Chalk Bob IV enables you to do the layout on the ground! It gives you four reliable reference points
two "chalk" lines on any horizontal or vertical surface (accurate to 1/4" at 20 ft
two "bob" points for pinpointing on ceiling or floor (accuracy: ± 1/8" at 16 ft)
Features
- Level method-pendulum system
- Battery life of 16 hours
- Line laser wave length: 630-580nm
- Lines blink to indicate out-of-level range