TENG TOOLS, BALL-END ALLEN/HEX WRENCH SET
US sizes; includes 5/64, 3/32, 1/8, 5/32, 3/16, 7/32, 1/4, 5/16 and 3/8". With a regular hex and special ball-end side on the hex key, which let you work under an angle of up to 30°. Complete with holder.