With transverse and longitudinal vials
Used as level and slope meter to measure the angle of two separate surfaces
Aluminum frame
Magnetic bottom
The sea level is permanently set inside the chip, zero setting is not needed when batteries are replaced
Buttons: ON/OFF, absolute and incremental measurement, keep the reading, buzzer alarm(not for 4910-400), unit (mm/m, %, in/ft), conversion(not for 4910-400), backlight
The display flips over when the bottom faces up

3M 10120, Synthetic Steel Wool Pads, 10120NA, #000 Extra Fine, 7000126149
3M 82511, Steel Mesh Faceshield Screen W96MW 82511-00000, with Clear Eyeshield, Headgear Not Included 10 EA/Case, 7000127231
3M 06524, Scotch Steel Gray Masking Paper, 06524, 24 in x 1000 ft, 1 per case, 7000045442
3M 10118, Synthetic Steel Wool Pads, 10118NA, #0 Fine, 7000126148
Dynabrade 78597 3/8" Dia. x 1-1/2" W x 1/8" Center Hole, 180 Grit, 100/pack
Dynabrade 02084 Angle Housing Assembly,Steel, Rear Exhaust
Standard Abrasives 42610, A/O Flap Wheel 621105, 1 in x 1/2 in x 1/4-20 in 60, 7010369103, 10 per case
3M 10116, Synthetic Steel Wool Pads, 10116NA, #2 Medium, 2 in x 4 in, 7000047708
3M 45708, Cubitron II Hookit Cloth Disc 947A, 60+ X-weight, 6 in x NH, Die 600Z, 7100113142
Standard Abrasives 875510, Buff and Blend AP Mounted Flap Brush, 2 in x 2 in x 1/4 in, A MED, 7000122219 