MULT-PHASE CRYOGENIC TREATEMENT – Patented deep thermal cycle brings drills down to -300°F to alter and refine the molecular grain structure, relieve stress fracturing and increase durability & life.
STABILIZED MOLECULAR STRUCTURE – Cryogenic treatment reduces brittleness and provides extended tool life.
“N” SERIES NITRIDE TREATMENT – Nitride treatment case hardens the cutting surfaces for superior edge retentions, faster long-term hole creation and longer service life.
BROKEN FASTENER REMOVAL – The left hand drill rotation can cause a fastener to back out when drilling, eliminating the need to use screw extractors to remove broken fasteners.
135° SPLIT POINT – Super heavy-duty 135° split point eliminates center punching.
PREMIUM “M” SERIES ALLOY STEEL – Provides exceptional wear resistance and extremely long tool life.
FLATTED SHANKS – Precision ground flats on the shank eliminate drill slippage and prevents damage to the drill and chuck. (Sizes smaller than 3/16" do not have flatted shanks).
MADE IN THE U.S.A.
Product Specification
Alt Hyphen Number:
82-8316
Brand:
Super Primalloy®
Diameter:
1/4"
Drill Length:
Maintenance Length
Finish:
Nitride
Flute Length:
2"
Hand:
Left Hand
Material:
M Series Alloy
Measurement Type:
SAE
Overall Length:
3-1/2"
Series:
Cryo-Gen N
Sold As:
Individual
Subcategory:
Maintenance Length Drill Bits
Tip Style:
135° Split Point
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