MailTank SH91 Auto Darkening Solar Welding Helmet with Dimmer Darkness Control, Lithium Battery Power (210mAh) DSK No load speed: 30

No load speed: 30

16-Speed Classes – Extensive speed range for precise control across a wide variety of materials and drill bit types

800W Blade Diameter 305 mm (12″) Hole Diameter European Countries: 30 mm (1-3/16″) Others: 25

Bead with Bearing 21

MailTank SH91 Auto Darkening Solar Welding Helmet with Dimmer Darkness Control, Lithium Battery Power (210mAh) DSK No load speed: 30HIGHLIGHTS: NEW and IMPROVED VERSION Auto Darkening Glass and Helmet Auto Dimmer Darkerness Level Selector Filter Size: 110mmX90mmX9mm Active ViewingArea: 90mmX34mm Light Shade: DIN4 Dark Shade: DIN8. 5~DIN12. 5 Way to Shift Dark State: Outer control, stepless shift Sensitivity Adjustment: Innerfixed set Switching Time:<5 10000S Delay Time: 0. 2S Power Supply: Lithium battery & Solar supply Rated Capacity of Lithium Battery: 210mAh Operating