Item #71305 - DP&DB. This drill pipe comes in three scales 1/25 - 1/24, 1/16 and 1/14 For 1/25 - 1/24 the overall length is 343 mm. For 1/16 - the overall length is 514 mm long and for 1/14 scale the pipe comes in at 587 mm long. A load of drill pipe is 13 lengths of pipe and two drill bits. All measurements are +/- 1.00mm approximately.