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5/16 In. x 4-1/2 In. Cobalt Drill Bit

IRWIN-3016020

This cobalt HSS fractional straight shank jobber length drill bit features 5-1/2 cobalt for higher heat and abrasion resistance. It is heavy duty with construction for strength and durability.... read more

Rating:
IRWIN-3016020 is rated 3.0 out of 5 by 2.
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List: $5.54
Now: $3 .79

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Features

This cobalt HSS fractional straight shank jobber length drill bit features 5-1/2 cobalt for higher heat and abrasion resistance. It is heavy duty with construction for strength and durability.

Additional Features

  • 135-degree point begins drilling immediately, minimizing bit walk
  • Tough metal drilling, including heavy-duty abrasive alloy metal drilling on hardened steel
  • 5-1/2 cobalt for higher heat and abrasion resistance
  • Heavy-duty with construction for strength and durability
Specifications
Acme Tools Brand Name: IRWIN
Acme Tools Part Number: 3016020
Assembled Weight (lbs): 0.02
Bit Diameter: .313
Bit Material: Cobalt
Country of Origin: CHN
Drill Bit Type: General Purpose
Drilling Depth (in): 0.0
Flute Length (in): 3.5
Internet Product Code (IPC): C397AC18D1A
Length (in): 4.5
Minimum Chuck Size Required: 1/4 in
Package Contents: 1 drill bit
Package Quantity: 1
Package Weight: 0.02
Recommended Safety Equipment: Safety glasses
Shank Diameter (in): 0.313
Surface Coating: Uncoated (Bright Finish)
Warranty: Limited lifetime
Internal Supplier Part #: 3016020
MFG Model # (Series): 3016020
MFG Part # (OEM): 3016020
Product Name: 5/16 In. x 4-1/2 In. Cobalt Drill Bit
UPC: 024721067098
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_2, h_6
  • bvseo_bulk, prod_bvrr, vn_bulk_0.0
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_2
  • loc_en_US, sid_10001_10751_3074457345616824287, prod, sort_[SortEntry(order=AGE, direction=DESCENDING)]
  • clientName_acmetools
  • bvseo_sdk, java_sdk, bvseo-3.1.1
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  • REVIEWS, PRODUCT