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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 | $2.51 | |
| 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 | $2.45 | |
| 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 | $6.60 |
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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
I love the quick service however, using the drill gage purchased in the order the #41 drill bits were actually #40.
Paul R
October 3, 2019
havent used them yet
Steve Y
July 26, 2019
ok
Steve Y
July 26, 2019
ok
Steve Y
July 26, 2019
Drills Great
Edward B
March 5, 2019
Akira A
February 15, 2019
The metal sheets are fine. The drills are fine. And the rivets are fine. All good, thank you.
Bob C
December 13, 2018
Advertised as long lasting. That may or may not be true. They aren’t nearly as sharpe as HSS. They are far more prone to wander than cheaper HSS. Probably fine in a drill press but not a good choice for drilling aluminum, especially rivet removal.
Scott F
December 10, 2018
Great quality, good price
Tim C
August 26, 2018
Used 1 (..and ordered 10) on a PA-12 wing to remove rivets, and its still going. VERY SATISFIED!
Ryan K
April 5, 2018
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.
