INGCO AKDB3055 5 Pcs masonry drill bits set

Viewing area:92?42mm Cartridge size:110?90?9mm Arc sensor:2
Optical class:1/1/1/2 Light state: DIN 4
Dark state: variable shade, 9 ~13 Shade control: external, variable Power ON/OFF: fully automatic Sensitivity control: auto
UV/IR protection: DIN 16
Power supply: solar cells+2*CR2032 lithium batteries
Switching time:1/15000s,from light to dark
Dark to light(Delay): 0.1-1.0 auto
Low amperage TIG:?10amps(DC),
?10amps(AC) Grinding function :yes Low volume alarm:yes
Operating tep:-5?~+55? Storing tep:-20?~+70?

Auto-darkening welding glasses Viewing area:95x31mm Cartridge size:108x 50.8x 5mm Sensors:2
Light state:3 Dark state:11
UV/IR protection: up to DIN 16 ON / OFF: automatic
Switch time(Light to dark): <0.5ms TIG amps rated: ? 30 amps Operating temperature: -5?~ +55? Storing temperature: -20?~ +70? Power supply: solar panel & lithium battery 2xCR1220

Voltage: 4V
Hex shank: 1/4″
No-load speed: 240rpm Max torque: 4N.m
Two positions adjustable handle Charging via USB type-C cable(cable sold separately)
Integrated work light
Include:
16 Pcs 25mm Cr-V bits+holder 2 Pcs 50mm Cr-V bits+holder 1 Pcs connector