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5/16 x 4-1/2-In. Cobalt High-Speed Drill Bit

Master Mechanic

SKU: 571273
  • $8.65
    Unit price per 

Master Mechanic, 5/16" x 4-1/2", High Speed Steel With Cobalt Drill Bit, 135 Split Point Design With 4 Cutting Edges Allows Quick Penetration & Eliminates Walking, 8% Cobalt Content Provides Heat Resistance & Delivers Maximum Cutting Efficiency At Temperatures In Excess Of 1000&degree. F., Recommended For Drilling In Hard Metals Such As Heat Treated Steel, Stainless Steel, Chrome, Manganese Steel Plus Titanium & Armor Plate, Carded.

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