Screwdriver bits are interchangeable tips for hex bit screwdrivers. You can use them with a cordless drill but not with the drill press as this applies way too much torque and speed! The cordless drill should always be used with medium to low torque setting and a low speed (1st gear) at least at the beginning.
When mounting long bits (or short bits with a bit holder) into a chuck, make sure that the chuck teeth are centered on the flat sides of the bit when tightened or you will lose or damage the bit.
1/4" Hex Drive Bits
These are the "typical" screwdriver bits you probably know from your own toolbox. The list below mostly contains the ones from the "grey bit set" - quantities may not interest you, but here you can quickly check whether a special drive is available or whether you should bring (or donate) that bit yourself!
Size
Screw Symbol
Screw Type
Quantity
PH0
Phillips
3x short
PH1
Phillips
3x short, 2x long
PH2
Phillips
2x short
PH3
Phillips
7x short, 2x long
PZ0
Pozidriv
3x short
PZ1
Pozidriv
4x short
PZ2
Pozidriv
10x short, 1x long
PZ3
Pozidriv
2x short, 1x long
3 mm
slotted
1x short
4 mm
slotted
1x short, 1x long
4.5 mm
slotted
2x short
5 mm
slotted
1x short, 1x long
5.5 mm
slotted
2x short
6 mm
slotted
1x short, 1x long
6.5 mm
slotted
2x short
7 mm
slotted
1x short, 1x long
8 mm
slotted
1x short
T8
Torx
1x short
T10
Torx
2x short, 1x long
T15
Torx
2x short
T20
Torx
2x short, 1x long
T25
Torx
2x short
T27
Torx
1x short
T30
Torx
2x short, 1x long
T40
Torx
2x short
T45
Torx
1x short
T8H
Security Torx
1x short
T10H
Security Torx
1x short
T15H
Security Torx
1x short
T25H
Security Torx
1x short
T27H
Security Torx
1x short
T30H
Security Torx
1x short
T35H
Security Torx
1x short
T40H
Security Torx
1x short
1.5 mm
hex socket
1x short
1.59 mm (1/16")
hex socket
1x short
1.98 mm (5/64")
hex socket
1x short
2 mm
hex socket
1x short
2.4 mm (3/32")
hex socket
1x short
2.5 mm
hex socket
1x short
2.8 mm (7/64")
hex socket
1x short
3 mm
hex socket
1x short
3.2 mm (1/8")
hex socket
1x short
3.6 mm (9/64")
hex socket
1x short
4 mm
hex socket
3x short, 1x long
4.8 mm (3/16")
hex socket
1x short
5 mm
hex socket
2x short, 1x long
5.5 mm
hex socket
1x short
5.6 mm (7/32")
hex socket
1x short
6 mm
hex socket
2x short, 1x long
6.4 mm (1/4")
hex socket
1x short
8 mm
hex socket
1x short
1.98 mm (5/64")
security hex socket
1x short
2 mm
security hex socket
1x short
2.4 mm (3/32")
security hex socket
1x short
2.5 mm
security hex socket
1x short
2.8 mm (7/64")
security hex socket
1x short
3 mm
security hex socket
1x short
3.2 mm (1/8")
security hex socket
1x short
3.6 mm (9/64")
security hex socket
1x short
4 mm (5/32")
security hex socket
2x short
5 mm
security hex socket
1x short
6 mm
security hex socket
1x short
5 mm
Double Hex
1x short
6 mm
Double Hex
1x short
8 mm
Double Hex
1x short
6
Torq-set
1x short
8
Torq-set
1x short
10
Torq-set
1x short
1
Clutch Type G
1x short
2
Clutch Type G
1x short
3
Clutch Type G
1x short
0
Robertson
1x short
1
Robertson
1x short
2
Robertson
1x short
3
Robertson
1x short
1
Tri-wing
1x short
2
Tri-wing
1x short
3
Tri-wing
1x short
4
Tri-wing
1x short
4
spanner
1x short
6
spanner
1x short
8
spanner
1x short
10
spanner
1x short
Bit Holders
Bit holders (DE: Bithalter) are necessary to mount short-shaft bits into a power driver such as a cordless drill but may also add functionality to a handheld bit screwdriver. For instance, there are quick-release holders, such with a strong magnet for one-handed operation, and simple extension pieces without any extras.