Chipbreaker Oil  Feed Drills

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CHIPBREAKER DRILLS / CHIPBREAKER OIL FEED DRILLS 

Parallel Shank Oil Feed Chipbreaker Drills

There are advantages in using either chipbreaker drills or oil feed drills - by specifying General Chipbreaker Oil Feed drills you get the best of both in one drill.

OIL FEED DRILLS

The technique of oil feed drilling has been known for many years.  The benefits of providing a cutting coolant/lubricant directly to the cutting edge of a drill include higher cutting speeds, higher feed rates, longer tool life and less frequent need to re-point grind.  The coolant also assists in clearing chips from the drill lips and its pressure ejects the swarf along the flutes of the drill thus facilitating drilling to greater depths without repeated withdrawal to clear swarf.

CHIPBREAKER DRILLS

The General Chipbreaker isn't complicated in design - its patented rib is precision milled along the entire length of the flutes and this special feature is maintained throughout the drill's working life.  Its cutting action is perfectly normal, but there are vital differences between the unique Chipbreaker and ordinary drills...

 

Morse Taper Shank Oil Feed Chipbreaker Drills End Feed

The efficient way swarf is broken into chips ensures faster drilling times because clogging is less likely to occur and therefore coolant flows smoothly along the flutes, improving heat dissipation at the drill point.  This means that faster penetration rates can be used with less power and fewer withdrawals - a special bonus on deep hole horizontal drilling.

Because swarf is broken into small, manageable chips which move easily along the flutes, Chipbreaker cuts more freely than any other drill, and the chips are easier to handle and transport and are less dangerous to the operator.

The parallel web ensures accurate centering and requires no thinning when resharpening.  It also aids chip removal.

Rigidity is improved by the Chipbreaker rib - increasing the number of holes per regrind.

All this means longer drill life, giving more holes at less cost.

Coolant-Fed Drill Features -

oil tube-drills are stronger and give better
tool life (holes are milled near the margin, 
not drilled near the core)
connects to all coolant systems
allows for greater speeds and feeds
faster drilling - particularly on deep holes
(reducing times by up to 75%)
longer drill life and less maintenance
(3-10 times longer life)
better finish and hole size
safety for the operator
 
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Last modified: June 27, 2003