6" Aircraft Extension drills
- Type 211
Made to NAS907 B Specs

This heavy duty 135° split point H.S.S.
drill is used for drilling holes in hard to reach places.
PART
NUMBER |
DIAMETER |
OVERALL
LENGTH |
FLUTE
LENGTH |
| 68470 |
3/32 |
6 |
1-1/4 |
| 68490 |
7/64 |
6 |
1-1/2 |
| 68500 |
1/8 |
6 |
1-5/8 |
| 68510 |
9/64 |
6 |
1-3/4 |
| 68520 |
5/32 |
6 |
2 |
| 68530 |
11/64 |
6 |
2-1/8 |
| 68540 |
3/16 |
6 |
2-5/16 |
| 68550 |
13/64 |
6 |
2-7/16 |
| 68560 |
7/32 |
6 |
2-1/2 |
| 68570 |
15/64 |
6 |
2-5/8 |
| 68580 |
1/4 |
6 |
2-3/4 |
| 68590 |
# 1 |
6 |
2-5/8 |
| 68600 |
# 10 |
6 |
2-7/16 |
| 68610 |
# 11 |
6 |
2-5/16 |
| 68620 |
# 20 |
6 |
2-1/8 |
| 68630 |
# 21 |
6 |
2-1/8 |
| 68640 |
# 29 |
6 |
1-3/4 |
| 68650 |
# 30 |
6 |
1-5/8 |
| 37490 |
# 40 |
6 |
1-3/8 |
12" Aircraft Extension
drills - Type 212

Welded construction
PART
NUMBER |
DIAMETER |
OVERALL
LENGTH |
FLUTE
LENGTH |
| 68800 |
1/8 |
12 |
1-5/8 |
| 68810 |
9/64 |
12 |
1-3/4 |
| 68820 |
5/32 |
12 |
2 |
| 68830 |
11/64 |
12 |
2-1/8 |
| 68840 |
3/16 |
12 |
2-5/16 |
| 68850 |
13/64 |
12 |
2-7/16 |
| 68860 |
7/32 |
12 |
2-1/2 |
| 68870 |
15/64 |
12 |
2-5/8 |
| 68880 |
1/4 |
12 |
2-3/4 |
| 68890 |
17/64 |
12 |
2-7/8 |
| 68900 |
9/32 |
12 |
2-15/16 |
| 68910 |
19/64 |
12 |
3-1/16 |
| 68920 |
5/16 |
12 |
3-3/16 |
| 68930 |
21/64 |
12 |
3-5/16 |
| 68940 |
11/32 |
12 |
3-7/16 |
| 68950 |
23/64 |
12 |
3-1/2 |
| 68960 |
3/8 |
12 |
3-5/8 |
| 68970 |
25/64 |
12 |
3-3/4 |
| 68980 |
13/32 |
12 |
3-7/8 |
| 68990 |
27/64 |
12 |
3-15/16 |
| 69000 |
7/16 |
12 |
4-1/16 |
| 69010 |
29/64 |
12 |
4-3/16 |
| 69020 |
15/32 |
12 |
4-5/16 |
| 69030 |
31/64 |
12 |
4-3/8 |
| 69040 |
1/2 |
12 |
4-1/2 |
| 69050 |
# 1 |
12 |
2-5/8 |
| 69060 |
# 10 |
12 |
2-7/16 |
| 69070 |
# 11 |
12 |
2-5/16 |
| 69080 |
# 20 |
12 |
2-1/8 |
| 69090 |
# 21 |
12 |
2-1/8 |
| 69100 |
# 29 |
12 |
1-3/4 |
| 69110 |
# 30 |
12 |
1-5/8 |
| 2370 |
# 40 |
12 |
1-3/8 |
|