AMC 2026 catalogue

Machining

Drill Bits

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MACHINING

Maintenance-Grade Silver and Deming HSS Drill Bits, 118°

▪1⁄2" reduced shank ▪6" overall length ▪3.1250" flute length ▪Round bits are conventional point ▪Round with flats are split point

GNF190-55432

Drill Bit Size

Decimal Equivalent

List Number 190 190F Non-Listed 1813 1877

Brand

Item

No. Brand

Item

No. Brand

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No. Brand

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Item

No. 1⁄2 in 0.5 Chicago-Latrobe GNF190-55432 — — — — 33⁄64 in 0.5156 Chicago-Latrobe GNF190-55433 Chicago-Latrobe GNF190F52433 Westward WSW4UM59 Cle-Line GNF1813-20733 Cle-Line GNF1877C17031 17⁄32 in 0.5312 Chicago-Latrobe GNF190-55434 Chicago-Latrobe GNF190F52434 — Cle-Line GNF1813-20734 Cle-Line GNF1877C17032 17⁄32 in 0.5313 — — Westward WSW4UM60 — — 35⁄64 in 0.5469 Chicago-Latrobe GNF190-55435 Chicago-Latrobe GNF190F52435 Westward WSW4UM61 Cle-Line GNF1813-20735 Cle-Line GNF1877C17033 9⁄16 in 0.5625 Chicago-Latrobe GNF190-55436 Chicago-Latrobe GNF190F52436 Westward WSW4UM62 Cle-Line GNF1813-20736 Cle-Line GNF1877C17034 37⁄64 in 0.5781 Chicago-Latrobe GNF190-55437 Chicago-Latrobe GNF190F52437 — Cle-Line GNF1813-20737 Cle-Line GNF1877C17035 19⁄32 in 0.5938 Chicago-Latrobe GNF190-55438 Chicago-Latrobe GNF190F52438 — Cle-Line GNF1813-20738 Cle-Line GNF1877C17036 39⁄64 in 0.6094 Chicago-Latrobe GNF190-55439 Chicago-Latrobe GNF190F52439 — Cle-Line GNF1813-20739 Cle-Line GNF1877C17037 5⁄8 in 0.625 Chicago-Latrobe GNF190-55440 Chicago-Latrobe GNF190F52440 Westward WSW4UM66 Cle-Line GNF1813-20740 Cle-Line GNF1877C17038 41⁄64 in 0.6406 Chicago-Latrobe GNF190-55441 Chicago-Latrobe GNF190F52441 Westward WSW4UM67 Cle-Line GNF1813-20741 Cle-Line GNF1877C17039 21⁄32 in 0.6562 Chicago-Latrobe GNF190-55442 Chicago-Latrobe GNF190F52442 — Cle-Line GNF1813-20742 Cle-Line GNF1877C17040 21⁄32 in 0.6563 — — Westward WSW4UM68 — — 43⁄64 in 0.6719 Chicago-Latrobe GNF190-55443 Chicago-Latrobe GNF190F52443 Westward WSW4UM69 Cle-Line GNF1813-20743 Cle-Line GNF1877C17041 11⁄16 in 0.6875 Chicago-Latrobe GNF190-55444 Chicago-Latrobe GNF190F52444 Westward WSW4UM70 Cle-Line GNF1813-20744 Cle-Line GNF1877C17042 45⁄64 in 0.7031 Chicago-Latrobe GNF190-55445 Chicago-Latrobe GNF190F52445 Westward WSW4UM71 Cle-Line GNF1813-20745 Cle-Line GNF1877C17043 23⁄32 in 0.7188 Chicago-Latrobe GNF190-55446 Chicago-Latrobe GNF190F52446 — Cle-Line GNF1813-20746 Cle-Line GNF1877C17044 47⁄64 in 0.7344 Chicago-Latrobe GNF190-55447 Chicago-Latrobe GNF190F52447 Westward WSW4UM73 Cle-Line GNF1813-20747 Cle-Line GNF1877C17045 3⁄4 in 0.75 Chicago-Latrobe GNF190-55448 Chicago-Latrobe GNF190F52448 Westward WSW4UM74 Cle-Line GNF1813-20748 Cle-Line GNF1877C17046 49⁄64 in 0.7656 Chicago-Latrobe GNF190-55449 Chicago-Latrobe GNF190F52449 — Cle-Line GNF1813-20749 Cle-Line GNF1877C17047 25⁄32 in 0.7812 Chicago-Latrobe GNF190-55450 Chicago-Latrobe GNF190F52450 — Cle-Line GNF1813-20750 Cle-Line GNF1877C17048 25⁄32 in 0.7813 — — Westward WSW4UM76 — — 51⁄64 in 0.7969 Chicago-Latrobe GNF190-55451 Chicago-Latrobe GNF190F52451 Westward WSW4UM77 — Cle-Line GNF1877C17049 13⁄16 in 0.8125 Chicago-Latrobe GNF190-55452 Chicago-Latrobe GNF190F52452 Westward WSW4UM78 Cle-Line GNF1813-20751 Cle-Line GNF1877C17050 53⁄64 in 0.8281 Chicago-Latrobe GNF190-55453 Chicago-Latrobe GNF190F52453 Westward WSW4UM79 — Cle-Line GNF1877C17051 27⁄32 in 0.8438 Chicago-Latrobe GNF190-55454 Chicago-Latrobe GNF190F52454 Westward WSW4UM80 Cle-Line GNF1813-20752 Cle-Line GNF1877C17052 55⁄64 in 0.8594 Chicago-Latrobe GNF190-55455 Chicago-Latrobe GNF190F52455 — — Cle-Line GNF1877C17053 7⁄8 in 0.875 Chicago-Latrobe GNF190-55456 Chicago-Latrobe GNF190F52456 Westward WSW4UM82 Cle-Line GNF1813-20753 Cle-Line GNF1877C17054 57⁄64 in 0.8906 Chicago-Latrobe GNF190-55457 Chicago-Latrobe GNF190F52457 Westward WSW4UM83 — Cle-Line GNF1877C17055 29⁄32 in 0.9062 Chicago-Latrobe GNF190-55458 Chicago-Latrobe GNF190F52458 — Cle-Line GNF1813-20754 Cle-Line GNF1877C17056 59⁄64 in 0.9219 Chicago-Latrobe GNF190-55459 Chicago-Latrobe GNF190F52459 — — Cle-Line GNF1877C17057 15⁄16 in 0.9375 Chicago-Latrobe GNF190-55460 Chicago-Latrobe GNF190F52460 — Cle-Line GNF1813-20755 Cle-Line GNF1877C17058 61⁄64 in 0.9531 Chicago-Latrobe GNF190-55461 Chicago-Latrobe GNF190F52461 — — Cle-Line GNF1877C17059 31⁄32 in 0.9688 Chicago-Latrobe GNF190-55462 Chicago-Latrobe GNF190F52462 Westward WSW4UM88 Cle-Line GNF1813-20756 Cle-Line GNF1877C17060 63⁄64 in 0.9844 Chicago-Latrobe GNF190-55463 Chicago-Latrobe GNF190F52463 Westward WSW4UM89 — Cle-Line GNF1877C17061 1 in 1 Chicago-Latrobe GNF190-55464 — Westward WSW4UM90 Cle-Line GNF1813-20757 Cle-Line GNF1877C17062 1 in 1 — Chicago-Latrobe GNF190F52464 — — — 1 1⁄32 in 1.0039 Chicago-Latrobe GNF190-55466 Chicago-Latrobe GNF190F52466 — — — 1 1⁄64 in 1.0156 Chicago-Latrobe GNF190-55465 Chicago-Latrobe GNF190F52465 — — — 1 3⁄64 in 1.0469 Chicago-Latrobe GNF190-55467 — — — — 1 1⁄16 in 1.0625 Chicago-Latrobe GNF190-55468 — Westward WSW2UFX7 Cle-Line GNF1813-20758 Cle-Line GNF1877C17066 1 1⁄16 in 1.0625 — Chicago-Latrobe GNF190F52468 — — — 1 3⁄32 in 1.0938 Chicago-Latrobe GNF190-55470 Chicago-Latrobe GNF190F52470 — — — 1 7⁄64 in 1.1094 Chicago-Latrobe GNF190-55471 Chicago-Latrobe GNF190F52471 — — — 1 1⁄8 in 1.125 Chicago-Latrobe GNF190-55472 Chicago-Latrobe GNF190F52472 — Cle-Line GNF1813-20759 Cle-Line GNF1877C17070 1 9⁄64 in 1.1406 Chicago-Latrobe GNF190-55473 Chicago-Latrobe GNF190F52473 — — — 1 5⁄32 in 1.1562 Chicago-Latrobe GNF190-55474 Chicago-Latrobe GNF190F52474 — — — 1 11⁄64 in 1.1719 Chicago-Latrobe GNF190-55475 — — — — 1 3⁄16 in 1.1875 Chicago-Latrobe GNF190-55476 Chicago-Latrobe GNF190F52476 — Cle-Line GNF1813-20760 Cle-Line GNF1877C17074 1 7⁄32 in 1.2188 Chicago-Latrobe GNF190-55478 Chicago-Latrobe GNF190F52478 — — — 1 1⁄4 in 1.25 Chicago-Latrobe GNF190-55480 Chicago-Latrobe GNF190F52480 — Cle-Line GNF1813-20761 Cle-Line GNF1877C17078 1 9⁄32 in 1.2812 Chicago-Latrobe GNF190-55482 — — — — 1 5⁄16 in 1.3125 Chicago-Latrobe GNF190-55484 Chicago-Latrobe GNF190F52484 — Cle-Line GNF1813-20762 Cle-Line GNF1877C17082 1 11⁄32 in 1.3438 Chicago-Latrobe GNF190-55486 — — — — 1 3⁄8 in 1.375 Chicago-Latrobe GNF190-55488 Chicago-Latrobe GNF190F52488 — Cle-Line GNF1813-20763 Cle-Line GNF1877C17086 1 27⁄64 in 1.4219 Chicago-Latrobe GNF190-55491 — — — — 1 7⁄16 in 1.4375 Chicago-Latrobe GNF190-55492 Chicago-Latrobe GNF190F52492 — Cle-Line GNF1813-20764 Cle-Line GNF1877C17090 1 1⁄2 in 1.5 Chicago-Latrobe GNF190-55496 — Westward WSW2UFY5 Cle-Line GNF1813-20765 Cle-Line GNF1877C17094 1 1⁄2 in 1.5 — Chicago-Latrobe GNF190F52496 — — —

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TAKE CONTROL OF YOUR STUFF

Run drill sizes up to 1 1⁄2" on portable electric drills or drill presses. Minimal adjustment needed during tool changes. No need for tool presetting. Flatted shanks provide a more positive grip in the drill chuck.