High-strength screwdriver using D1 material . High-frequency quenching,the overall hardness of HRC65 . Strong magnetic circle,with a strong magnetic,the middle of the use of concave design,more torque,better toughness . Batch head bite high,reduce wear and tear,long service life . Applicable to decoration,furniture,electronics,plastics,metal and other use . Type:Magnetic screwdriver bits set Features:Multifunctional,Explosion-proof,Dismountable,Double Head,Non-slip Screw Head Type:Hex, Screw Head Size:1/4 inch /6.35 mm With Handle Or Not:No Type:Magnetic Screwdriver Magnetic:Yes Length:65 mm Magnetic ring length:16 mm size:PH2 Quantity:5 pcs Color:gray+gold material:metal Package Contents: 5* Electronic Screwdriver Bits Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.