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Aircraft Spruce & Specialty Co.
Corona, CA | Chicago, IL
Wasilla, AK | Peachtree City, GA
Brantford, ON Canada
Aircraft Spruce & Specialty Co.
Corona, CA | Chicago, IL
Wasilla, AK | Peachtree City, GA
Brantford, ON Canada
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| Description | Drill Size | Approx Length |
Part Number | Price | Buy |
|---|---|---|---|---|---|
| SUPER COBALT DRILL #55 | 55 | 1-7/8" | 12-03791 | $2.25 | |
| SUPER COBALT DRILL 51 | 51 | 2" | 12-03698 | $2.35 | |
| SUPER COBALT DRILL #44 | 44 | 2-1/8" | 12-03792 | $1.84 | |
| SUPER COBALT DRILL #42 (1) | 42 | 2-1/4" | 12-04212 | $1.70 | |
| SUPER COBALT DRILL #41 | 41 | 2-3/8" | 12-04213 | $1.70 | |
| SUPER COBALT DRILL #33 (1) | 33 | 2-7/16" | 12-04216 | $1.95 | |
| SUPER COBALT DRILL #36 (1) | 36 | 2-1/2" | 12-04215 | $1.95 | |
| SUPER COBALT DRILL #37 | 37 | 2-1/2" | 12-03793 | $1.65 | |
| SUPER COBALT DRILL #35 (1) | #35 | 2-5/8" | 12-04235 | $2.15 | |
| SUPER COBALT DRILL 1/8 | 1/8" | 2-3/4" | 12-04225 | $2.50 | |
| SUPER COBALT DRILL #40 | 40 | 2-3/4" | 12-04214 | $1.70 | |
| SUPER COBALT DRILL #30 | 30 | 2-3/4" | 12-04217 | $2.25 | |
| SUPER COBALT DRILL #28 (1) | 28 | 2-15/16" | 12-04218 | $2.45 | |
| SUPER COBALT DRILL #27 | 27 | 3" | 12-04219 | $2.70 | |
| SUPER COBALT DRILL 5/32 (1) | 5/32" | 3-1/8" | 12-04226 | $2.65 | |
| SUPER COBALT DRILL #23 (1) | 23 | 3-1/8" | 12-04220 | $2.70 | |
| SUPER COBALT DRILL #21 | 21 | 3-5/16" | 12-14221 | $2.85 | |
| SUPER COBALT DRILL #19 | 19 | 3-5/16" | 12-04221 | $2.70 | |
| SUPER COBALT DRILL 3/16 | 3/16" | 3-1/2" | 12-04227 | $3.35 | |
| SUPER COBALT DRILL #12 (1) | 12 | 3-1/2" | 12-04222 | $3.75 | |
| SUPER COBALT DRILL #10 | 10 | 3-5/8" | 12-04223 | $3.75 | |
| SUPER COBALT DRILL "D" (1) | "D" | 4" | 12-04224 | $4.95 | |
| SUPER COBALT DRILL 1/4 (1) | 1/4" | 4" | 12-04228 | $4.60 | |
| SUPER COBALT DRILL 5/16 (1) | 5/16" | 4-1/2" | 12-04229 | $6.85 |
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Overview
| These super cobalt hi-speed jobber length aircraft drill bits feature heavy duty construction to Type J aircraft specifications. Use to drill hard, tough metals, stainless steels, iron based and titanium alloys, and certain plastics. Hardness of cobalt permits speeds 30% over regular H.S.S. drills. Cobalt drills demand rigidly held, positive feed drilling equipment. |
Reviews
Nice sharp accurate drill bits.
James W
August 9, 2020
Good so far.
Tom
July 1, 2020
Did the job , Thanks Joe
Joseph G
May 4, 2020
last a long time
Darrin T
April 23, 2020
Cobalt is great for repeated drilling of fiberglass. Lasts longer than other bits.
Bob T
January 30, 2020
As always the quality of the product is excellent but I ordered two drills of the same size and neither was the right one. However one was mismarked by the manufacturer. The size difference was obvious to the eye. This was the first time in over 25 years that this has happened and the service you get from Aircraft Spruce is great.
Gary M
January 30, 2020
ok
Steve Y
July 26, 2019
ok
Steve Y
July 26, 2019
Drills Great
Edward B
March 5, 2019
Akira A
February 15, 2019
Q&A
Q: What is the length of drill bit part number 12-04212?
The 12-04212 drill bit is 2-1/4" long.
Q: Are these bits 135 degree or 118 degree cut?
They have a 135 degree split.
Q: WHAT IS THE RECOMMENDED DRILL FOR THE AN6-20A BOLT
You would need at least a 3/8 drill.
