Hexagon Screwdriver High Speed Steel Titanium Plated Gold $ 4.26 Product details: Tool head: 1.5mm inner hexagonal. Length: 100mm. Knife handle: 3.5mm [installation]. Material: alloy steel. Rotary rod head type: hexagonal. Standard: metric system. Size information: Size: 0.9mm 1.27mm 1.5mm 2.0mm 2.5mm 3.0mm. Package content: Knife head X1