AMC 2026 catalogue

Machining

Drill Bits

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MACHINING

GNF1878-18113

Drill Bit Size

Decimal Equivalent Flute Length

Overall Length Brand

Item

No. Black/Gold

#1 0.228 2 5⁄8 in 3 7⁄8 in Cle-Line GNF1878-18054 #2 0.221 2 5⁄8 in 3 7⁄8 in Cle-Line GNF1878-18055 #3 0.213 2 1⁄2 in 3 3⁄4 in Cle-Line GNF1878-18056 #4 0.209 2 1⁄2 in 3 3⁄4 in Cle-Line GNF1878-18057 #5 0.2055 2 1⁄2 in 3 3⁄4 in Cle-Line GNF1878-18058 #6 0.204 2 1⁄2 in 3 3⁄4 in Cle-Line GNF1878-18059 #7 0.201 2 7⁄16 in 3 5⁄8 in Cle-Line GNF1878-18060 #8 0.199 2 7⁄16 in 3 5⁄8 in Cle-Line GNF1878-18061 #9 0.196 2 7⁄16 in 3 5⁄8 in Cle-Line GNF1878-18062 #10 0.1935 2 7⁄16 in 3 5⁄8 in Cle-Line GNF1878-18063 #11 0.191 2 5⁄16 in 3 1⁄2 in Cle-Line GNF1878-18064 #12 0.189 2 5⁄16 in 3 1⁄2 in Cle-Line GNF1878-18065 #13 0.185 2 5⁄16 in 3 1⁄2 in Cle-Line GNF1878-18066 #14 0.182 2 3⁄16 in 3 3⁄8 in Cle-Line GNF1878-18067 #15 0.18 2 3⁄16 in 3 3⁄8 in Cle-Line GNF1878-18068 #16 0.177 2 3⁄16 in 3 3⁄8 in Cle-Line GNF1878-18069 #17 0.173 2 3⁄16 in 3 3⁄8 in Cle-Line GNF1878-18070 #18 0.1695 2 1⁄8 in 3 1⁄4 in Cle-Line GNF1878-18071 #19 0.166 2 1⁄8 in 3 1⁄4 in Cle-Line GNF1878-18072 #20 0.161 2 1⁄8 in 3 1⁄4 in Cle-Line GNF1878-18073 #21 0.159 2 1⁄8 in 3 1⁄4 in Cle-Line GNF1878-18074 #22 0.157 2 in 3 1⁄8 in Cle-Line GNF1878-18075 #23 0.154 2 in 3 1⁄8 in Cle-Line GNF1878-18076 #24 0.152 2 in 3 1⁄8 in Cle-Line GNF1878-18077 #25 0.1495 1 7⁄8 in 3 in Cle-Line GNF1878-18078 #26 0.147 1 7⁄8 in 3 in Cle-Line GNF1878-18079 #27 0.144 1 7⁄8 in 3 in Cle-Line GNF1878-18080 #28 0.1405 1 3⁄4 in 2 7⁄8 in Cle-Line GNF1878-18081 #29 0.136 1 3⁄4 in 2 7⁄8 in Cle-Line GNF1878-18082 #30 0.1285 1 5⁄8 in 2 3⁄4 in Cle-Line GNF1878-18083 #31 0.12 1 5⁄8 in 2 3⁄4 in Cle-Line GNF1878-18084 #32 0.116 1 5⁄8 in 2 3⁄4 in Cle-Line GNF1878-18085 #33 0.113 1 1⁄2 in 2 5⁄8 in Cle-Line GNF1878-18086 #34 0.111 1 1⁄2 in 2 5⁄8 in Cle-Line GNF1878-18087 #35 0.11 1 1⁄2 in 2 5⁄8 in Cle-Line GNF1878-18088 #36 0.1065 1 7⁄16 in 2 1⁄2 in Cle-Line GNF1878-18089 #37 0.104 1 7⁄16 in 2 1⁄2 in Cle-Line GNF1878-18090 #38 0.1015 1 7⁄16 in 2 1⁄2 in Cle-Line GNF1878-18091 #39 0.0995 1 3⁄8 in 2 3⁄8 in Cle-Line GNF1878-18092 #40 0.098 1 3⁄8 in 2 3⁄8 in Cle-Line GNF1878-18093 #41 0.096 1 3⁄8 in 2 3⁄8 in Cle-Line GNF1878-18094 #42 0.0935 1 1⁄4 in 2 1⁄4 in Cle-Line GNF1878-18095 #43 0.089 1 1⁄4 in 2 1⁄4 in Cle-Line GNF1878-18096 #44 0.086 1 1⁄8 in 2 1⁄8 in Cle-Line GNF1878-18097 #45 0.082 1 1⁄8 in 2 1⁄8 in Cle-Line GNF1878-18098 #46 0.081 1 1⁄8 in 2 1⁄8 in Cle-Line GNF1878-18099 #47 0.0785 1 in 2 in Cle-Line GNF1878-18100 #48 0.076 1 in 2 in Cle-Line GNF1878-18101 #49 0.073 1 in 2 in Cle-Line GNF1878-18102 #50 0.07 1 in 2 in Cle-Line GNF1878-18103 #51 0.067 1 in 2 in Cle-Line GNF1878-18104 #52 0.0635 7⁄8 in 1 7⁄8 in Cle-Line GNF1878-18105 #53 0.0595 7⁄8 in 1 7⁄8 in Cle-Line GNF1878-18106 #54 0.055 7⁄8 in 1 7⁄8 in Cle-Line GNF1878-18107

Drill Bit Size

Decimal Equivalent Flute Length Overall Length Brand

Item

No. Black Oxide

1⁄8 in 0.125 1 5⁄8 in 2 3⁄4 in Westward WSW5XL70 1⁄4 in 0.25 2 3⁄4 in 4 in Westward WSW5XL78 5⁄16 in 0.3125 3 3⁄16 in 4 1⁄2 in Westward WSW5XL81 3⁄8 in 0.375 3 5⁄8 in 5 in Westward WSW5XL82 1⁄2 in 0.5 4 1⁄2 in 6 in Westward WSW5XL84

* 3⁄8" reduced shank.

Drill Bit Size

Decimal Equivalent Flute Length

Overall Length Brand

Item

No. Black/Gold

A 0.234 2 5⁄8 in 3 7⁄8 in Cle-Line GNF1878-18029 B 0.238 2 3⁄4 in 4 in Cle-Line GNF1878-18030 C 0.242 2 3⁄4 in 4 in Cle-Line GNF1878-18031 D 0.246 2 3⁄4 in 4 in Cle-Line GNF1878-18032 F 0.257 2 7⁄8 in 4 1⁄8 in Cle-Line GNF1878-18033 G 0.261 2 7⁄8 in 4 1⁄8 in Cle-Line GNF1878-18034 H 0.266 2 7⁄8 in 4 1⁄8 in Cle-Line GNF1878-18035 I 0.272 2 7⁄8 in 4 1⁄8 in Cle-Line GNF1878-18036 J 0.277 2 7⁄8 in 4 1⁄8 in Cle-Line GNF1878-18037 K 0.281 2 15⁄16 in 4 1⁄4 in Cle-Line GNF1878-18038

Drill Bit Size

Decimal Equivalent Flute Length

Overall Length Brand

Item

No. L 0.29 2 15⁄16 in 4 1⁄4 in Cle-Line GNF1878-18039 M 0.295 3 1⁄16 in 4 3⁄8 in Cle-Line GNF1878-18040 N 0.302 3 1⁄16 in 4 3⁄8 in Cle-Line GNF1878-18041 O 0.316 3 3⁄16 in 4 1⁄2 in Cle-Line GNF1878-18042 P 0.323 3 5⁄16 in 4 5⁄8 in Cle-Line GNF1878-18043 Q 0.332 3 7⁄16 in 4 3⁄4 in Cle-Line GNF1878-18044 R 0.339 3 7⁄16 in 4 3⁄4 in Cle-Line GNF1878-18045 S 0.348 3 1⁄2 in 4 7⁄8 in Cle-Line GNF1878-18046 T 0.358 3 1⁄2 in 4 7⁄8 in Cle-Line GNF1878-18047 U 0.368 3 5⁄8 in 5 in Cle-Line GNF1878-18048 V 0.377 3 5⁄8 in 5 in Cle-Line GNF1878-18049 W 0.386 3 3⁄4 in 5 1⁄8 in Cle-Line GNF1878-18050 X 0.397 3 3⁄4 in 5 1⁄8 in Cle-Line GNF1878-18051 Y 0.404 3 7⁄8 in 5 1⁄4 in Cle-Line GNF1878-18052 Z 0.413 3 7⁄8 in 5 1⁄4 in Cle-Line GNF1878-18053

Drill Bit Size

Decimal Equivalent Flute Length

Overall Length Brand

Item

No. Black/Gold

1⁄16 in 0.0625 7⁄8 in 1 7⁄8 in Cle-Line GNF1878-18000 5⁄64 in 0.0781 1 in 2 in Cle-Line GNF1878-18001 3⁄32 in 0.0938 1 1⁄4 in 2 1⁄4 in Cle-Line GNF1878-18002 7⁄64 in 0.1094 1 1⁄2 in 2 5⁄8 in Cle-Line GNF1878-18003 1⁄8 in 0.125 1 5⁄8 in 2 3⁄4 in Cle-Line GNF1878-18004 9⁄64 in 0.1406 1 3⁄4 in 2 7⁄8 in Cle-Line GNF1878-18005 5⁄32 in 0.1563 2 in 3 1⁄8 in Cle-Line GNF1878-18006 11⁄64 in 0.1719 2 1⁄8 in 3 1⁄4 in Cle-Line GNF1878-18007 3⁄16 in 0.1875 2 5⁄16 in 3 1⁄2 in Cle-Line GNF1878-18008 13⁄64 in 0.2031 2 7⁄16 in 3 5⁄8 in Cle-Line GNF1878-18009 7⁄32 in 0.2188 2 1⁄2 in 3 3⁄4 in Cle-Line GNF1878-18010 15⁄64 in 0.2344 2 5⁄8 in 3 7⁄8 in Cle-Line GNF1878-18011 1⁄4 in 0.25 2 3⁄4 in 4 in Cle-Line GNF1878-18012 17⁄64 in 0.2656 2 7⁄8 in 4 1⁄8 in Cle-Line GNF1878-18013 9⁄32 in 0.2813 2 15⁄16 in 4 1⁄4 in Cle-Line GNF1878-18014 19⁄64 in 0.2969 3 1⁄16 in 4 3⁄8 in Cle-Line GNF1878-18015 5⁄16 in 0.3125 3 3⁄16 in 4 1⁄2 in Cle-Line GNF1878-18016 21⁄64 in 0.3281 3 5⁄16 in 4 5⁄8 in Cle-Line GNF1878-18017 11⁄32 in 0.3438 3 7⁄16 in 4 3⁄4 in Cle-Line GNF1878-18018 23⁄64 in 0.3594 3 1⁄2 in 4 7⁄8 in Cle-Line GNF1878-18019 3⁄8 in 0.375 3 5⁄8 in 5 in Cle-Line GNF1878-18020 25⁄64 in 0.3906 3 3⁄4 in 5 1⁄8 in Cle-Line GNFC18114 * 25⁄64 in 0.3906 3 3⁄4 in 5 1⁄8 in Cle-Line GNF1878-18021 13⁄32 in 0.4063 3 7⁄8 in 5 1⁄4 in Cle-Line GNFC18115 * 13⁄32 in 0.4063 3 7⁄8 in 5 1⁄4 in Cle-Line GNF1878-18022 27⁄64 in 0.4219 3 15⁄16 in 5 3⁄8 in Cle-Line GNFC18116 * 27⁄64 in 0.4219 3 15⁄16 in 5 3⁄8 in Cle-Line GNF1878-18023 7⁄16 in 0.4375 4 1⁄16 in 5 1⁄2 in Cle-Line GNF1878-18024 29⁄64 in 0.4531 4 3⁄16 in 5 5⁄8 in Cle-Line GNFC18118 * 29⁄64 in 0.4531 4 3⁄16 in 5 5⁄8 in Cle-Line GNF1878-18025 15⁄32 in 0.4688 4 5⁄16 in 5 3⁄4 in Cle-Line GNFC18119 * 15⁄32 in 0.4688 4 5⁄16 in 5 3⁄4 in Cle-Line GNF1878-18026 31⁄64 in 0.4844 4 3⁄8 in 5 7⁄8 in Cle-Line GNFC18120 * 31⁄64 in 0.4844 4 3⁄8 in 5 7⁄8 in Cle-Line GNF1878-18027 1⁄2 in 0.5 4 1⁄2 in 6 in Cle-Line GNF1878-18028 Black Oxide

1⁄16 in 0.0625 7⁄8 in 1 7⁄8 in Cle-Line GNF1801C23125 5⁄64 in 0.0781 1 in 2 in Cle-Line GNF1801C23126 3⁄32 in 0.0938 1 1⁄4 in 2 1⁄4 in Cle-Line GNF1801C23127 7⁄64 in 0.1094 1 1⁄2 in 2 5⁄8 in Cle-Line GNF1801C23128 1⁄8 in 0.125 1 5⁄8 in 2 3⁄4 in Cle-Line GNF1801C23129 9⁄64 in 0.1406 1 3⁄4 in 2 7⁄8 in Cle-Line GNF1801C23130 5⁄32 in 0.1563 2 in 3 1⁄8 in Cle-Line GNF1801C23131 11⁄64 in 0.1719 2 1⁄8 in 3 1⁄4 in Cle-Line GNF1801C23132 3⁄16 in 0.1875 2 5⁄16 in 3 1⁄2 in Cle-Line GNF1801C23133 13⁄64 in 0.2031 2 7⁄16 in 3 5⁄8 in Cle-Line GNF1801C23134 7⁄32 in 0.2188 2 1⁄2 in 3 3⁄4 in Cle-Line GNF1801C23135 15⁄64 in 0.2344 2 5⁄8 in 3 7⁄8 in Cle-Line GNF1801C23136 1⁄4 in 0.25 2 3⁄4 in 4 in Cle-Line GNF1801C23137 17⁄64 in 0.2656 2 7⁄8 in 4 1⁄8 in Cle-Line GNF1801C23138 9⁄32 in 0.2813 2 15⁄16 in 4 1⁄4 in Cle-Line GNF1801C23139 19⁄64 in 0.2969 3 1⁄16 in 4 3⁄8 in Cle-Line GNF1801C23140 5⁄16 in 0.3125 3 3⁄16 in 4 1⁄2 in Cle-Line GNF1801C23141 21⁄64 in 0.3281 3 5⁄16 in 4 5⁄8 in Cle-Line GNF1801C23142 11⁄32 in 0.3438 3 7⁄16 in 4 3⁄4 in Cle-Line GNF1801C23143 23⁄64 in 0.3594 3 1⁄2 in 4 7⁄8 in Cle-Line GNF1801C23144 3⁄8 in 0.375 3 5⁄8 in 5 in Cle-Line GNF1801C23145 25⁄64 in 0.3906 3 3⁄4 in 5 1⁄8 in Cle-Line GNF1801C23146 13⁄32 in 0.4063 3 7⁄8 in 5 1⁄4 in Cle-Line GNF1801C23147 27⁄64 in 0.4219 3 15⁄16 in 5 3⁄8 in Cle-Line GNF1801C23148 7⁄16 in 0.4375 4 1⁄16 in 5 1⁄2 in Cle-Line GNF1801C23149 29⁄64 in 0.4531 4 3⁄16 in 5 5⁄8 in Cle-Line GNF1801C23150 15⁄32 in 0.4688 4 5⁄16 in 5 3⁄4 in Cle-Line GNF1801C23151 31⁄64 in 0.4844 4 3⁄8 in 5 7⁄8 in Cle-Line GNF1801C23152 1⁄2 in 0.5 4 1⁄2 in 6 in Cle-Line GNF1801C23153

Maintenance Grade Jobbers Length HSS Drill Bits, 135°

▪Split point ▪Black/Gold finish are List #1878 ▪Black Oxide finish are List #1801 Reduce thrust and help eliminate walking at the drill point.

CLE-LINE, WESTWARD