石(shi)油(you)(you)鉆(zhan)(zhan)桿接(jie)(jie)頭(tou)量規(gui)(gui)是檢驗石(shi)油(you)(you)鉆(zhan)(zhan)桿接(jie)(jie)頭(tou)螺(luo)(luo)紋的一種(zhong)(zhong)綜合量具，根據鉆(zhan)(zhan)桿接(jie)(jie)頭(tou)形(xing)式的不(bu)同，量規(gui)(gui)可(ke)分(fen)為(wei)正(zheng)規(gui)(gui)型(xing)(xing)、貫眼(yan)型(xing)(xing)、內平(ping)型(xing)(xing)和數(shu)字型(xing)(xing)四種(zhong)(zhong)，每種(zhong)(zhong)又有一系(xi)列的規(gui)(gui)格。是石(shi)油(you)(you)鉆(zhan)(zhan)桿接(jie)(jie)頭(tou)、水龍頭(tou)、方(fang)鉆(zhan)(zhan)桿、鉆(zhan)(zhan)鋌等鉆(zhan)(zhan)桿構件的連接(jie)(jie)螺(luo)(luo)紋的檢驗量具。數(shu)字型(xing)(xing)：NC10-NC77 貫眼(yan)型(xing)(xing): 3 1/2FH～6 5/8FH 正(zheng)規(gui)(gui)型(xing)(xing)；2 3/8REG～8 5/8REG 內平(ping)型(xing)(xing)：2 3/8IF～5 1/2IF.