Quantity: 8pcs 1/4 * 1/4 * 50mm length ------ 1/4 #39; #39; shank can be converted to 6.35mm square head 3/8 * 1/4 * 50mm length ------ 1/4 #39; #39; shank can be converted to 9.53mm square head 1/2 * 1/4 * 50mm length ------ 1/4 #39; #39; shank can be converted to 12.7mm square head 1/4 * 1/4 * 65mm length ------ 1/4 #39; #39; shank can be converted to 6.35mm square head 3/8 * 1/4 * 65mm length ------ 1/4 #39; #39; shank can be converted to 9.53mm square head 1/2 * 1/4 * 73mm length ------ 1/4 #39; #39; shank can be converted to 12.7mm square head 1/4 * 1/4 * 25mm length ------ 1/4 #39; #39; shank can be converted to 6.35mm square head 1/4 * 1/4 * 30mm length ------ 1/4 #39; #39; shank can be converted to 6.35mm square head