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Solid Carbide Twister® GP Center Drill Long Length
Designed to maintain accurate center holes on long production runs, or when precise centering is required. Solid carbide construction helps reduce tool changes when centering abrasive or difficult to machine materials.
  • 2 Flute
  • Solid carbide
  • 60° Included angle
  • Straight helix
  • 5" OAL
  • Uncoated, coating available upon request

Product Range

Tool No. EDP Diameter (D/D1) Diameter Dec Shank Diameter (D2) Overall Length (L1) Flute Length (L2) Coating Shank Type
.0250 40502500 40501 00 .0250 1/8 5 Uncoated Straight
.0310 40503100 40505 0 .0310 1/8 5 Uncoated Straight
.0468 40504680 40509 1 .0468 1/8 5 Uncoated Straight
.0468 40504680A 78057 1 .0468 1/8 5 ALtima® Straight
.0468 40504680T 76311 1 .0468 1/8 5 TiN Straight
.0781 40507810 40513 2 .0781 3/16 5 Uncoated Straight
.0781 40507810T 10878 2 .0781 3/16 5 TiN Straight
.1093 40510930 40517 3 .1093 1/4 5 Uncoated Straight
.1093 40510930A 76312 3 .1093 1/4 5 ALtima® Straight
.1093 40510930T 76313 3 .1093 1/4 5 TiN Straight
.1250 40512500 40521 4 .1250 5/16 5 Uncoated Straight
.1250 40512500A 12584 4 .1250 5/16 5 ALtima® Straight
.1250 40512500T 76314 4 .1250 5/16 5 TiN Straight
.1875 40518750 40525 5 .1875 7/16 5 Uncoated Straight
.1875 40518750A 17331 5 .1875 7/16 5 ALtima® Straight
.2187 40521870 40529 6 .2187 1/2 5 Uncoated Straight