Features These hex socket bits come with a hex bit on one end that fits inside the hexagonal-shaped indentation in the fastener head. Insert Length / 1 in Replaceable Insert / No Measurement Type / Metric Tip Size / 2 mm Tip Style / Hex Overall Length / 1 7/8 in Drive Size / 1/4 in Socket Depth / Standard Material / Alloy Steel Finish / Chrome Impact Rated / No Insulated / No Number of Points / 6