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Heavy duty geometry for drilling tougher materials by hand or machine. Shorter flutes and overall length provide superior rigidity to minimize deflection when using heavy feed rates. Manufactured from premium cobalt high-speed steel. 135&#176; split point is self-centering for reduced thrust and easier penetration, sizes under .0625 do not have split. Straw oxide finish for increased lubricity with reduced galling and welding and easy identification of cobalt. For drilling in alloy and carbon steel, stainless, cast iron and tool steel. Made In USA. Pack Of 12. 30 Day Warranty.

Chicago-Latrobe 559 #46 Cobalt Heavy-Duty Straw 135 Split Point Screw Machine Drill - Pkg Qty 12

559-46-cobalt-heavy-duty-straw-135-split-point-screw-machine-drill

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