Hertel Screw Machine Length Drill Sets

• 118 point for quick penetration
• 135 self centering split point prevents “walking”
• Case included

Tool Material:

HSS

• Provides good wear resistance in mild steels, soft metals (aluminum, copper, brass, bronze) and nonferrous materials.

Cobalt

• Provides better wear resistance in hardness and toughness compared to HSS.
• For use in high-tensile alloys, titanium, cast iron, Inconel and high-nickel stainless steel.

Coating Advantages:

Black Oxide

• Retains lubricants to aid in wear resistance and chip flow.

Bright (Polished) Finish

• Improves chip flow of soft and low carbon materials.

TiN

• Increases lubricity and heat resistance. Allows increase in machining speeds of 25 – 35%.

3-In-1 Sets:

• 115 Pieces with sizes: 1/16 – 1/2″ x 64ths, #1 – 60 Wire Gage, A – Z

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