INGCO AKD1075 7Pcs HSS twist 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?

Include:
10 Pcs socket:10,11,12,13,14,15,17,19,21,24
mm
1 Pcs 1/2″ 72T quick release ratchet handle
1 Pcs 5″(125mm) extention bar Material:50BV30 High quality CrV steel
With three-color soft handle Heat treatment
Chromed plated