Welcome to this week’s DIY tool matchup, where we will dive into Price or quality? cobalt vs black oxide drill bits
The best cobalt vs black oxide drill bits
6 Pcs, #21 Cobalt Black Oxide Long Threaded Shank Drill Bit, Tsd21L, Number Of Flutes: 2; Cutting Direction: Right Hand, Overall Length: 2-1/8" Shank Size: 1/4"-28
$16.60
in stock
Amazon.com
as of August 24, 2023 1:47 pm
Features
- Size: #21; Material: Cobalt; Finish: Black Oxide;
- Overall Length: 2-1/8"; Shank Size: 1/4"-28;
- Shank Type: Threaded; Style: Threaded Shank;
- Cutting Angle: 135; Point Type: Split Point;
- Number of Flutes: 2; Cutting Direction: Right Hand
Drill America 1/8" High Speed Steel Black Oxide Drill Bit (Pack of 12), D/an Series
$20.20
in stock
Amazon.com
as of August 24, 2023 1:47 pm
Features
- High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance
- Black oxide treatment adds lubricity and creates small pockets on the surface of the tool that act to hold coolant near the cutting edge
- Round shanks allow use with a wide variety of toolholding systems
- When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
- Ideal for production, maintenance or portable drilling jobs
Milwaukee Elec Tool 48-89-2305 Thunderbolt Cobalt Drill Bit, 1/8-In. - Quantity 5
$22.99
in stock
Amazon.com
as of August 24, 2023 1:47 pm
Features
- Milwaukee Red Helix 1/8 In. Cobalt Drill Bit
- Milwaukee Cobalt RED HELIX Drill Bits are engineered for extreme durability and long life in hard metal applications. Designed with a Variable Helix that includes an aggressive 35 degree Helix Angle which ends at 15 degree
- the Cobalt bits with RED HELIX provide Rapid Chip Removal limiting heat buildup to Stay Sharper Longer.
- The 135 degree split point tip delivers a precision start and prevents walking for fast, accurate holes. Ideal for tough applications and provide up to 10X life vs. Black Oxide Drill Bits but can be used in all twist drilling applications.
- Pack of 5
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Price Drops Alerts
6 Pcs, #21 Cobalt Black Oxide Long Threaded Shank Drill Bit, Tsd21L, Number Of Flutes: 2; Cutting Direction: Right Hand, Overall Length: 2-1/8" Shank Size: 1/4"-28, Drill America
Price: $16.60
as of August 24, 2023 1:47 pm
as of August 24, 2023 1:47 pm
BUY NOW
Amazon.com
Wait For A Price Drop
Price History
Statistics
| Current Price | $16.60 | August 24, 2023 |
| Highest Price | $16.64 | May 27, 2024 |
| Lowest Price | $16.64 | May 27, 2024 |
Since May 27, 2024
Last price changes
| $16.64 | May 27, 2024 |
Drill America 1/8" High Speed Steel Black Oxide Drill Bit (Pack of 12), D/an Series, Drill America
Price: $20.20
as of August 24, 2023 1:47 pm
as of August 24, 2023 1:47 pm
BUY NOW
Amazon.com
Wait For A Price Drop
Price History
Statistics
| Current Price | $20.20 | August 24, 2023 |
| Highest Price | $14.19 | July 22, 2024 |
| Lowest Price | $8.81 | May 28, 2024 |
Since May 28, 2024
Last price changes
| $11.30 | August 7, 2024 |
| $11.65 | August 1, 2024 |
| $13.20 | July 29, 2024 |
| $14.19 | July 22, 2024 |
| $8.94 | June 12, 2024 |
Milwaukee Elec Tool 48-89-2305 Thunderbolt Cobalt Drill Bit, 1/8-In. - Quantity 5, Milwaukee Tool
Price: $22.99
as of August 24, 2023 1:47 pm
as of August 24, 2023 1:47 pm
BUY NOW
Amazon.com
Wait For A Price Drop
Price History
Statistics
| Current Price | $22.99 | August 24, 2023 |
| Highest Price | $22.96 | June 1, 2024 |
| Lowest Price | $21.32 | August 30, 2024 |
Since June 1, 2024
Last price changes
| $21.32 | August 30, 2024 |
| $21.34 | August 27, 2024 |
| $22.46 | August 1, 2024 |
| $22.48 | July 29, 2024 |
| $22.49 | July 22, 2024 |