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      • All Products
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  • New for 2026
High Speed Steel T-Slot Style Keyseat Cutters
Features:
  • T-slot cutter profile produces precision T-shaped slots for secure mechanical retention
  • Staggered tooth design with alternating RH / LH shear flutes, RH cut
  • Undercutting geometry provides clearance beneath slot openings
  • Design improves shearing action and finish while minimizing chip dragging and recutting and decrease vibration
  • High speed steel
  • Precision manufactured in the USA


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    Tip: Enter a quantity for each item, then scroll down and add to cart
    Item Cutter Diameter Cutter Width Radial DOC Shank Diameter Flutes Overall Length Coating In Stock Price Quantity
    5778817
    0.5625" (9/16) 0.2344" (15/64) 0.1484 0.5000" (1/2) 8 2.5938" UNCOATED 6 $124.17
    5778828
    0.6563" 0.2656" (17/64) 0.1641 0.5000" (1/2) 8 2.6875" (2-11/16) UNCOATED 6 $132.89
    5778839
    0.7813" 0.3281" (21/64) 0.1875 0.7500" (3/4) 8 3.2500" (3-1/4) UNCOATED 6 $194.12
    5778850
    0.9688" 0.3906" (25/64) 0.2188 0.7500" (3/4) 8 3.4375" (3-7/16) UNCOATED 10 $219.28
    5778861
    1.0000" (1) 0.0938" 0.25 0.7500" (3/4) 8 3.1250" (3-1/8) UNCOATED 6 $216.01
    5778872
    1.0000" (1) 0.1250" (1/8) 0.25 0.7500" (3/4) 8 3.1250" (3-1/8) UNCOATED 4 $220.45
    5778883
    1.0000" (1) 0.1563" (5/32) 0.25 0.7500" (3/4) 8 3.1875" (3-3/16) UNCOATED 6 $222.20
    5778894
    1.0000" (1) 0.1875" (3/16) 0.25 0.7500" (3/4) 8 3.1875" (3-3/16) UNCOATED 6 $227.52
    5778905
    1.0000" (1) 0.2500" (1/4) 0.25 0.7500" (3/4) 8 3.2500" (3-1/4) UNCOATED 6 $226.88
    5778916
    1.0000" (1) 0.3125" (5/16) 0.25 0.7500" (3/4) 8 3.3125" (3-5/16) UNCOATED 6 $228.44
    5778927
    1.0000" (1) 0.3750" (3/8) 0.25 0.7500" (3/4) 8 3.3750" (3-3/8) UNCOATED 6 $234.05
    5778938
    1.0000" (1) 0.5000" (1/2) 0.25 0.7500" (3/4) 8 3.5000" (3-1/2) UNCOATED 5 $233.61
    5778949
    1.2500" (1-1/4) 0.4844" (31/64) 0.2969 1.0000" (1) 8 3.9375" (3-15/16) UNCOATED 6 $297.76
    5778960
    1.4688" 0.6250" (5/8) 0.3438 1.0000" (1) 8 4.4375" (4-7/16) UNCOATED 5 $351.93
    5778971
    1.5000" (1-1/2) 0.0938" 0.375 1.0000" (1) 8 4.1250" (4-1/8) UNCOATED 5 $322.48
    5778982
    1.5000" (1-1/2) 0.1250" (1/8) 0.375 1.0000" (1) 8 4.1250" (4-1/8) UNCOATED 5 $319.41
    5778993
    1.5000" (1-1/2) 0.1563" (5/32) 0.375 1.0000" (1) 8 4.1875" (4-3/16) UNCOATED 6 $321.65
    5779004
    1.5000" (1-1/2) 0.1875" (3/16) 0.375 1.0000" (1) 8 4.1875" (4-3/16) UNCOATED 5 $323.02
    5779015
    1.5000" (1-1/2) 0.2500" (1/4) 0.375 1.0000" (1) 8 4.2500" (4-1/4) UNCOATED 6 $335.89
    5779026
    1.5000" (1-1/2) 0.3125" (5/16) 0.375 1.0000" (1) 8 4.3125" (4-5/16) UNCOATED 6 $337.59
    5779037
    1.5000" (1-1/2) 0.3750" (3/8) 0.375 1.0000" (1) 8 4.3750" (4-3/8) UNCOATED 6 $355.88
    5779048
    1.5000" (1-1/2) 0.5000" (1/2) 0.375 1.0000" (1) 8 4.5000" (4-1/2) UNCOATED 5 $354.02




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