Milwaukee 1/2 in. Thunderbolt Black Oxide Drill Bit-48-89-2738 - The Home Depot


Model # 48-89-2738

Internet # 202256165

Store SKU # 771919

1/2 in. Thunderbolt Black Oxide Drill Bit

Milwaukee 1/2 in. Thunderbolt Black Oxide Drill Bit

This item has been discontinued.
The Home Depot no longer carries this specific product.

$10.97 / each


Model # 48-89-2738

Internet # 202256165

Store SKU # 771919

The Milwaukee 48-89-2738 1/2 in. Thunderbolt Black Oxide Drill Bit is excellent for drilling on curved surfaces. This drill bit features black oxide construction and a parabolic flute form to clear chips and debris to keep the bit cool. The thick core offers excellent protection from side-load breakage, and this bit is recommended for use with portable drills (portable drills not included).

  • Thunderbolt web, provides longer life and faster driller times
  • Parabolic flute, clears chips faster
  • Black oxide construction for durability
  • 135-degree split point, precision start no walking


Assembled Depth (in.)  0.47 in  Assembled Height (in.)  7.75 in 
Assembled Width (in.)  1.88 in  Bit Diameter  1/2 in 
Bit Length (in.)  Bit diameter (in.)  0.5 
Drilling Depth (in)  4.5  Shank Diameter  3/8 in 
Shank Diameter (in.)  .375 
Bit Material  Black Oxide  Color Family  Black 
Cordless/Corded  Cordless  Drill & Router Bit Type  Drill Bits 
Drill Bit Type  Twist  Drill Bit Type(s) Included  Twist 
Individual/Set  Individual  Min Chuck Size Required  N/A 
Power Tool Product Type  Power Tool Accessory  Returnable  90-Day 
Self-Feeding  No  Shank Style  3-Flat 
Tools Product Type  Power Tool 


Rated 4.0 out of 5 by 4 reviewers.
Rated 5.0 out of 5.0 by Good value drill bit Drill bit worked perfect for drilling through 4x4 posts. July 15, 2014
Rated 1.0 out of 5.0 by Useless drill bit Drill bit part of two pack. Drilled into hard wood door frame and snapped off before drill reached max RPM. I haven't used the other yet for fear that it might snap as well. July 9, 2014
Rated 5.0 out of 5.0 by Good Quality Keep the bit cool, I was using it to drill through 1/4" steel plates. I lubricated/sprayed a little WD-40 or PB Blaster to not overheat the bit. Drilled all the holes I needed and is still has sharp as the day I bought it. June 17, 2014
Rated 5.0 out of 5.0 by The bit did everything as described Used the bit numerous times. It hold a very good edge and is sharp after using it with different types of drilling surfaces. May 27, 2014
1-4 of 4


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