Features 4mm torx diameter and a 2mm security hole.<br> With a little magnetism design, it is more convenient and practical for use.<br> Plastic handle in ergonomical shape provide great comfortable grip, precise tip more secure fit.<br> It is useful to open up electronic device, perferred for electrician, and repair shop for its versatile.<br> Product Name: Screwdriver<br> Material: Metal Shaft and Plastic Handle<br> Tip Type: Security Torx ( T20 )<br> Tip Hole Diameter: 2m<br> Torx Diameter: 4mm<br> Shaft Diameter: 5mm<br> Shaft Length (): 100mm / 3.9 inch<br> Total Length: 175mm / 6.9 inch<br> Handle Size (): 75mm x 20mm / 3 inch x 0.8 inch (L x D )<br> Handle Color: Clear, Red<br> Weight: 890g<br> Package Contents:<br> 20 x Screwdriver<br> Only the above package content, other products are not included.<br> Note: Light reflection 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. This product is designed for comfort and performance. Ideal for everyday use, gym training, and body support.