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7/16 In. x 5-1/2 In. Cobalt Drill Bit

IRWIN-3016128

This drill bit is constructed of M-35 5 percent cobalt high speed steel for super abrasive resistance in tough metals. The heavy duty spiral flute design produces faster chip ejection.... read more

Rating:
IRWIN-3016128 is rated 3.0 out of 5 by 2.
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List: $9.87
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Features

This drill bit is constructed of M-35 5 percent cobalt high speed steel for super abrasive resistance in tough metals. The heavy duty spiral flute design produces faster chip ejection.

Additional Features

  • Shorter cutting lips reduce torque for drilling in high tensile strength materials
  • 135-degree split point reduces feed pressure
  • Easier penetration without work hardening
  • 5-1/2 In. overall length
Specifications
Acme Tools Brand Name: IRWIN
Acme Tools Part Number: 3016128
Assembled Weight (lbs): 0.2
Bit Diameter: 0.438
Bit Material: Cobalt
Country of Origin: CHN
Drill Bit Type: Twist
Flute Length (in): 3.5
Internet Product Code (IPC): 55A42732798
Length (in): 5.5
Minimum Chuck Size Required: 1/4 in
Package Contents: 1 drill bit
Package Quantity: 1
Package Weight: 0.2
Recommended Safety Equipment: Safety glasses
Shank Diameter (in): 0.5
Surface Coating: Uncoated (Bright Finish)
Warranty: Limited lifetime
Internal Supplier Part #: 3016028
MFG Model # (Series): 3016028
MFG Part # (OEM): 3016028
Product Name: 7/16 In. x 5-1/2 In. Cobalt Drill Bit
UPC: 024721067197
Top Rated: 3.0
Drill Bit Length Type: Jobber
Quick Change Impact Driver Bit: No
Acme Tools Air Shipment Restricted: N
Acme Tools Prop65 Compliant: N
Acme Tools Carb Compliant: N
Customer Reviews
Rated 1 out of 5 by from 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!!
Date published: 2015-04-01
Rated 5 out of 5 by from 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.
Date published: 2013-05-28
  • y_2016, m_12, d_9, h_21
  • bvseo_bulk, prod_bvrr, vn_bulk_0.0
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  • co_hasreviews, tv_0, tr_2
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  • clientName_acmetools
  • bvseo_sdk, java_sdk, bvseo-3.1.1
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  • REVIEWS, PRODUCT