DRILLING (SOLID CARBIDE) MAS a Specialized in aluminum and cast iron drilling. a High hole accuracy. a Pre-hole drilling for rolled tap. a Helical coolant hole enables high speed machining. P M K N S H INCH STANDARD L/D=3 Internal Coolant PL LF SIG 140° DCON DC LU LCF OAL .1250< DC< .2344 .2500< DC< .3906 .4062< DC< .7031 .7188< DC< .7812 +0.00020 +0.00020 +0.00020 +0.00020 0 0 0 0 .1250< DCON< .2344 .2500< DCON< .3906 .4062< DCON< .7031 .7188< DCON< .7812 0 0 0 0 ─ 0.00031 ─ 0.00035 ─ 0.00043 ─ 0.00051 Note 1) MAS drills bigger than .2031" have a recess in the end face. Note 2) MAS drills are suitable for use with shrink fit holders. Stock Dimensions (inch) Stock Dimensions (inch) Rolled Rolled DC DC (inch) Order Number Thread (inch) Order Number Thread HTi10 DCON DCON HTi10 OAL OAL Tap Size Tap Size LCF LCF LU LU PL PL LF LF .1250 MAS01250MB a .398 .968 2.543 2.520 .023 .1575 .4219 MAS04219MB a 1.342 2.242 4.053 3.976 .077 .4331 1/2-13, 1/2-12 .1406 MAS01406MB a .447 1.128 2.703 2.677 .026 .1575 .4375 MAS04375MB a 1.391 2.442 4.253 4.173 .080 .4724 1/4-18NPT .1495 MAS01495MB a .475 1.129 2.704 2.677 .027 .1575 10-24NC .4531 MAS04531MB a 1.441 2.444 4.255 4.173 .082 .4724 1/2-20, 1/4-18NS .1563 MAS01563MB a .497 1.130 2.705 2.677 .028 .1575 .4688 MAS04688MB a 1.491 2.447 4.258 4.173 .085 .4724 .1590 MAS01590MB a .506 1.249 2.824 2.795 .029 .1969 10-32NF .4844 MAS04844MB a 1.540 2.647 4.616 4.528 .088 .5118 9/16-12NC .1719 MAS01719MB a .547 1.251 2.826 2.795 .031 .1969 .5000 MAS05000MB a 1.590 2.650 4.619 4.528 .091 .5118 .1875 MAS01875MB a .596 1.333 2.908 2.874 .034 .1969 .5118 MAS05118MB a 1.628 2.652 4.621 4.528 .093 .5118 .2031 MAS02031MB a .646 1.454 3.029 2.992 .037 .2362 .5156 MAS05156MB a 1.640 2.850 4.818 4.724 .094 .5512 9/16-18NF .2165 MAS02165MB a .688 1.456 3.031 2.992 .039 .2362 .5312 MAS05312MB a 1.689 2.853 4.821 4.724 .097 .5512 5/8-11NC .2188 MAS02188MB a .696 1.575 3.150 3.110 .040 .2362 .5469 MAS05469MB a 1.739 2.856 4.824 4.724 .100 .5512 .2344 MAS02344MB a .745 1.578 3.153 3.110 .043 .2362 .5625 MAS05625MB a 1.789 2.937 5.220 5.118 .102 .5906 3/8-18NPT .2500 MAS02500MB a .795 1.700 3.353 3.307 .046 .2756 1/16-27NS .5781 MAS05781MB a 1.838 2.940 5.223 5.118 .105 .5906 5/8-18NF .2570 MAS02570MB a .817 1.701 3.354 3.307 .047 .2756 5/16-18NC .5937 MAS05937MB a 1.888 3.100 5.384 5.276 .108 .6299 3/8-18NS .2656 MAS02656MB a .845 1.702 3.355 3.307 .048 .2756 .6094 MAS06094MB a 1.938 3.103 5.387 5.276 .111 .6299 .2720 MAS02720MB a .865 1.704 3.357 3.307 .050 .2756 5/16-24NF .6250 MAS06250MB a 1.988 3.106 5.390 5.276 .114 .6299 .2812 MAS02812MB a .894 1.941 3.594 3.543 .051 .3150 .6406 MAS06406MB a 2.037 3.267 5.550 5.433 .117 .6693 .2969 MAS02969MB a .944 1.944 3.597 3.543 .054 .3150 .6563 MAS06563MB a 2.087 3.269 5.552 5.433 .119 .6693 3/4-10NC .3125 MAS03125MB a .994 1.947 3.600 3.543 .057 .3150 3/8-16NC .6718 MAS06718MB a 2.136 3.468 5.752 5.630 .122 .7087 M .3281 MAS03281MB a 1.043 2.029 3.761 3.701 .060 .3543 1/8-27NPT .6875 MAS06875MB a 2.186 3.471 5.755 5.630 .125 .7087 3/4-16NF .3320 MAS03320MB a 1.056 2.029 3.761 3.701 .060 .3543 3/8-24NF .7031 MAS07031MB a 2.236 3.474 5.758 5.630 .128 .7087 1/2-14NPT DRILLING .3438 MAS03438MB a 1.093 2.032 3.764 3.701 .063 .3543 .7188 MAS07188MB a 2.286 3.674 5.958 5.827 .131 .7480 .3594 MAS03594MB a 1.143 2.152 3.884 3.819 .065 .3937 .7344 MAS07344MB a 2.335 3.677 5.961 5.827 .134 .7480 7/8-9, 1/2-14NS .3680 MAS03680MB a 1.170 2.154 3.886 3.819 .067 .3937 7/16-14NC .7500 MAS07500MB a 2.385 3.877 6.161 6.024 .137 .7874 .3750 MAS03750MB a 1.193 2.155 3.887 3.819 .068 .3937 .7656 MAS07656MB a 2.435 3.879 6.163 6.024 .139 .7874 .3906 MAS03906MB a 1.242 2.158 3.890 3.819 .071 .3937 7/16-20NF .7812 MAS07812MB a 2.484 3.882 6.166 6.024 .142 .7874 .4062 MAS04062MB a 1.292 2.239 4.050 3.976 .074 .4331 Note 1) Please contact Mitsubishi Materials for any geometry that is not in the catalog (e.g. different dia. and length). a : USA Stock M140