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IRWIN Cobalt High Speed Steel Drill Bit, 1/4" Item # 172966

IRWIN Cobalt High Speed Steel Drill Bit, 1/4"
$ 3 .19 / each (*) $3.19
Reg. $ 6.59   (You Save $3.40)

In Stock
Estimated delivery 3-5 business days

* Price After Instant Savings
Prices effective through 12/12/2015

  • 8% Cobalt for higher heat and abrasion resistance
  • Heavy-duty web construction for strength and durability


    • 8% Cobalt for higher heat and abrasion resistance 
    • Heavy-duty web construction for strength and durability 
    • 135º split point begins drilling immediately, minimizing bit "walk" 

    Product Details

    Item # 172966 
    Manufacturer # 585-63116  
    weight 0.04 lb
    brand name Irwin
    Spiral Angle CW
    Type Drill Bit
    Cutting Diam 1/4 in
    Point Angle 135°
    Overall Length 2 1/2 in
    distributor United, Inc.
    Point Shape Split
    Applicable Materials Hard Steel, Stainless Steel, Titanium
    Flute Length 2 3/4 in
    Structure Solid
    Shank Type Cylinder
    packaging type Bulk
    Finish Gold Oxide
    Length Group Jobber
    Cutting Edge Material HSS-E (Co-M42)
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    Customer Reviews

    Rated 3 out of 5�by 2 reviewers.
    Rated 1 out of 5�by cobalt drill bits Bought a new set of bits yesterday and I needed to drill6 holes through both 1/8" & 1/4" Angle iron bed frame material. The cobalt bits I bought failed miserably, could hardly get it done. Ended up having to step drill to get 6 - 1/4" holes through the material. I won't buy Irwin bits again!! April 1, 2015
    Rated 5 out of 5�by Mr. These cobalt drill bits are the only thing that will drill into hardened bolts and metals. I have tried standard bits on hardened metal before not knowing what grade the metal was. The standard bit dulls almost immediately so I reach for the cobalt bits. They will sink on through the metal with no problem. The only cons are they are more expensive and they will break easily if you put force perpendicular to the bit instead of linear. May 28, 2013
    • 2015-11-30 T06:41:24.186-06:00
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