Parabolic Flute Screw Machine Length

Parabolic drills feature a unique flute design that greatly enhances chip flow, coolant flow to the drill point and heat dissipation. The Parabolic design eliminates the pecking cycle. Constant heavy feed rate is recommended. Parabolic drills have a much different flute design with special web thinning, helix angles and Land Width than standard Screw Machine Drills. The flute design with a reinforced web increases drill strength and rigidity providing closer tolerance holes and higher speeds and feeds. General Purpose drills suitable for most applications on a wide variety of materials Ground from solid High Speed Steel Blanks Split Point drills = Self centering point eliminates "walking" and reduce thrust required

118 Degree Drill Point

135 Degree Split Point is self centering and eliminates walking and reduces thrust.

Polished-Bright - Aids in chip flow

Black Oxide - It is used to add mild corrosion resistance.

Titanium Coated {TIN} - Enhances surface hardness to help penetrate tough materials, makes the bits highly corrosion resistant and significantly reduces friction between bit and workpiece. Increases wear resistance.

TICN - has good adhesion, toughness, and resistance to chipping and performs well on drills where moderate temperatures are generated at the cuffing edge. Tialn - reflects the heat back into the chip and away from the tool and workpiece. Greater ductility makes it a good choice for interrupted cuts. Increased production levels at higher feeds and speeds and longer tool life in high heat applications are the primary benefits.

All items are new in original manufacturer's packaging {unless otherwise noted}.

They are limited to quantities available.

These items are from manufacturer's overstocks, distributors who have changed products lines and manufacturer's who have had print changes and no longer have a particular job in house where items where used.

Visuals are actual item{s}