Standard Auto darkening welding helmet T64 Used for conveniently removing taper ISL_TTXND Used for conveniently removing taper shank drills and remers from sleeves and sockets these are blackened and have a premium shot blast finish with permanent marking of size for easy identification 75mm 1pk Self Tapping Thread Inserts Standard Auto darkening welding helmetLight state DIN4Dark state DIN913Switching time lt125 000S at Room TemperatureCartridge Size 110 x 90 x 8 mm 413 x 359 x 13Viewing area 100 x 49 mm 31112 x 11112Sensitivity Stepless AdjustmentDelay time Stepless Adjustment 015S 080SShade Adjustment Outside amp SteplessSensors 2Grinding Mode OutsideTIG Capability gt5APower Supply LiMi amp Solar CombinationUV amp IR protection Up to shade 15Optical class 1112Certification CE EN379