MATERIAL High Speed Steel (HSS) is the premium material for this drill bits with heat-treatment to keep high hardness and tensile for long drilling and cutting life
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135 DEG.SPLIT POINT The 135 Deg. Split Point ensures the quick self-positioning and fast easy penetrating in drilling material
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SPIRAL FLUTE DESIGN Spiral Twist Flute Keeps the Fast Chips-Removing and Easy Penetrating During Application.
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3-FLAT SHANK 3-Flat Shank ensures much tighter and easy chucking in various of tool holders and machines withou slip.
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