I thought this was a good overview of the various drills and what each is measuring. The source is nfl.com. It also has target times for the various positions; Football Outsiders makes a great point that in part it can depend on how big a player is; so take all these with a grain of salt. (HT Wonko) Click into the story to see the full chart.
| Drill | Significance |
QB
|
RB
|
FB
|
WR
|
TE
|
OT
|
G/C
|
DT
|
DE
|
ILB
|
OLB
|
CB
|
S
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 40-yard dash | Speed over distance |
4.90
|
4.55
|
4.85
|
4.55
|
4.85
|
5.30
|
5.30
|
5.15
|
4.85
|
4.80
|
4.70
|
4.55
|
4.60
|
| 10-yard split (40) | Initial quickness |
1.70
|
1.60
|
1.70
|
1.60
|
1.70
|
1.80
|
1.85
|
1.80
|
1.70
|
1.70
|
1.65
|
1.60
|
1.65
|
| 20-yard split (40) | Maintain burst |
2.85
|
2.60
|
2.80
|
2.65
|
2.80
|
3.00
|
3.05
|
3.00
|
2.80
|
2.75
|
2.70
|
2.65
|
2.60
|
| 225-pound bench press reps | Upper body strength |
N/A
|
20
|
22
|
12
|
22
|
24
|
26
|
26
|
24
|
24
|
23
|
15
|
18
|
| Vertical jump | Explosiveness, leg strength |
30"
|
36
|
30
|
36
|
32
|
30
|
30
|
30
|
33
|
33
|
36
|
36
|
36
|
| Broad jump | Explosiveness, leg strength |
9'-0"
|
9-9
|
9-3
|
10-0
|
9-6
|
8-6
|
8-6
|
8-9
|
9-9
|
9-6
|
9-9
|
10-0
|
10-0
|
| 20-yard shuttle | Flexibility, burst, balance |
4.30
|
4.20
|
4.25
|
4.15
|
4,20
|
4.65
|
4.55
|
4.55
|
4.30
|
4.20
|
4.10
|
4.00
|
4.05
|
| 60-yard shuttle | Flexibility, balance, endurance |
N/A
|
11.7
|
11.8
|
11.4
|
11.8
|
N/A
|
N/A
|
N/A
|
11.8
|
11.7
|
11.4
|
11.2
|
11.2
|
| 3-cone drill | Agility, change of direction |
7.25
|
7.25
|
7.40
|
7.00
|
7,30
|
7.85
|
7.85
|
7.75
|
7.35
|
7.20
|
7.10
|
7.00
|
7.10
|