material: high grade chrome-vanadium steel, through hardened drive: DIN 3126, ISO 1173, style E 6.3 application: for all types of screw applications in trade and industry Product basic info Primary colours: Grey Primary detailed colours: Metal Width unit: 90 mm Weight unit: 23 g Material: High grade chrome-vanadium steel Physical properties Shaft shape: Straight Bit chuck size: 1/4" Tip size bit: PH3 Head style: Phillips® Internal square: No Tip hole: No Technical data Bit series: Professional Set-up options Tamper resistant: No (EN)