Fastener-Holding Nutdriver Bits
A mechanism inside the bit holds hex nuts and cap screws in place.
Bits with magnet hold steel fasteners.
Hex shank bits (also known as insert bits) are used in hand drivers or with a bit adapter in power tools.
Hex shank bits for power tools have a groove in the shank and fit directly into power tools without an adapter. They offer more reach for recessed holes and less wobble compared to a hex shank bit used with an adapter.
Overall | |||||||
|---|---|---|---|---|---|---|---|
| Size | Bolt Clearance | Lg. | OD | Fastener-Holding Mechanism | Material | Each | |
1/4" Hex Shank Size | |||||||
| 1/4" | 1/16" | 1 1/8" | 0.438" | Magnet | Steel | 00000000 | 00000 |
| 5/16" | 1/16" | 1 1/8" | 0.5" | Magnet | Steel | 00000000 | 0000 |
| 3/8" | 3/16" | 1 1/8" | 0.563" | Magnet | Steel | 00000000 | 0000 |
| 7 mm | 1/16" | 1 1/8" | 0.438" | Magnet | Steel | 00000000 | 0000 |
| 8 mm | 1/8" | 1 1/8" | 0.5" | Magnet | Steel | 00000000 | 0000 |
| 10 mm | 1/8" | 1 1/8" | 0.563" | Magnet | Steel | 00000000 | 0000 |
1/4" Hex Shank Size for Power Tools | |||||||
| 3/16" | 1/16" | 1 5/8" | 0.438" | Magnet | Steel | 0000000 | 0000 |
| 3/16" | 1/16" | 2 5/8" | 0.438" | Magnet | Steel | 0000000 | 0000 |
| 1/4" | 1/16" | 1 3/4" | 0.438" | Magnet | Steel | 0000000 | 0000 |
| 1/4" | 1/16" | 2 5/8" | 0.438" | Magnet | Steel | 0000000 | 0000 |
| 1/4" | 1/16" | 4" | 0.438" | Magnet | Steel | 0000000 | 0000 |
| 1/4" | 1/16" | 6" | 0.438" | Magnet | Steel | 0000000 | 0000 |
| 1/4" | 1/16" | 8" | 0.438" | Magnet | Steel | 0000000 | 0000 |
| 1/4" | 1/16" | 10" | 0.438" | Magnet | Steel | 0000000 | 0000 |
| 1/4" | 3/16" | 12" | 0.438" | Magnet | Steel | 0000000 | 0000 |
| 5/16" | 1/16" | 1 3/4" | 0.5" | Magnet | Steel | 0000000 | 0000 |
| 5/16" | 1/16" | 2 5/8" | 0.5" | Magnet | Steel | 0000000 | 0000 |
| 5/16" | 1/8" | 4" | 0.5" | Magnet | Steel | 0000000 | 0000 |
| 5/16" | 1/8" | 6" | 0.5" | Magnet | Steel | 0000000 | 0000 |
| 5/16" | 3/16" | 12" | 0.5" | Magnet | Steel | 0000000 | 0000 |
| 3/8" | 1/8" | 1 3/4" | 0.563" | Magnet | Steel | 0000000 | 0000 |
| 3/8" | 1/8" | 2 5/8" | 0.563" | Magnet | Steel | 0000000 | 0000 |
| 3/8" | 1/8" | 4" | 0.563" | Magnet | Steel | 0000000 | 0000 |
| 3/8" | 1/8" | 6" | 0.563" | Magnet | Steel | 0000000 | 00000 |
| 3/8" | 3/16" | 12" | 0.578" | Magnet | Steel | 0000000 | 0000 |
| 7/16" | 1/8" | 6" | 0.625" | Magnet | Steel | 0000000 | 0000 |
| 7/16" | 3/16" | 1 3/4" | 0.625" | Magnet | Steel | 0000000 | 0000 |
| 7/16" | 3/16" | 2 5/8" | 0.625" | Magnet | Steel | 0000000 | 0000 |
| 1/2" | 3/16" | 1 3/4" | 0.75" | Magnet | Steel | 0000000 | 0000 |
| 1/2" | 3/16" | 2 5/8" | 0.75" | Magnet | Steel | 0000000 | 0000 |
| 4 mm | 1/16" | 2 5/8" | 0.438" | Magnet | Steel | 0000000 | 0000 |
| 5 mm | 1/16" | 1 5/8" | 0.438" | Magnet | Steel | 0000000 | 0000 |
| 5 mm | 1/16" | 2 5/8" | 0.438" | Magnet | Steel | 0000000 | 0000 |
| 5.5 mm | 1/16" | 1 5/8" | 0.438" | Magnet | Steel | 0000000 | 0000 |
| 5.5 mm | 1/16" | 2 5/8" | 0.438" | Magnet | Steel | 0000000 | 0000 |
| 6 mm | 1/16" | 1 5/8" | 0.438" | Magnet | Steel | 0000000 | 0000 |
| 6 mm | 1/16" | 2 5/8" | 0.438" | Magnet | Steel | 0000000 | 0000 |
| 7 mm | 1/16" | 2 5/8" | 0.438" | Magnet | Steel | 0000000 | 0000 |
| 8 mm | 1/16" | 1 5/8" | 0.5" | Magnet | Steel | 0000000 | 0000 |
| 9 mm | 1/8" | 2 5/8" | 0.563" | Magnet | Steel | 0000000 | 0000 |
| 10 mm | 1/8" | 1 3/4" | 0.563" | Magnet | Steel | 0000000 | 0000 |
| 10 mm | 1/8" | 2 5/8" | 0.563" | Magnet | Steel | 0000000 | 0000 |
| 12 mm | 3/16" | 2 5/8" | 0.75" | Magnet | Steel | 0000000 | 00000 |
| 13 mm | 3/16" | 2 5/8" | 0.75" | Magnet | Steel | 0000000 | 00000 |
Fastener-Holding Nutdriver Bits for Impact Drivers
The toughest bits available, these withstand the shock and twisting force of impact drivers. They have a magnet that holds steel hex nuts and cap screws in place. The groove in the shank fits directly into power tools.
Overall | |||||||
|---|---|---|---|---|---|---|---|
| Size | Bolt Clearance | Lg. | OD | Fastener-Holding Mechanism | Material | Each | |
1/4" Hex Shank Size for Power Tools | |||||||
| 3/16" | 1/16" | 1 5/8" | 0.438" | Magnet | Steel | 0000000 | 00000 |
| 1/4" | 1/8" | 1 5/8" | 0.438" | Magnet | Steel | 0000000 | 0000 |
| 5/16" | 1/8" | 1 5/8" | 0.5" | Magnet | Steel | 0000000 | 0000 |
| 3/8" | 1/8" | 1 3/4" | 0.563" | Magnet | Steel | 0000000 | 0000 |
| 7/16" | 3/16" | 1 3/4" | 0.625" | Magnet | Steel | 0000000 | 0000 |
Extra-Grip Fastener-Holding Nutdriver Bits
Because they make contact on the flat sides of fasteners rather than only on the corners, these bits significantly reduce slipping and stripping. The groove in the shank fits directly into power tools. They are also known as lobular bits.
Overall | |||||||
|---|---|---|---|---|---|---|---|
| Size | Bolt Clearance | Lg. | OD | Fastener-Holding Mechanism | Material | Each | |
1/4" Hex Shank Size for Power Tools | |||||||
| 1/4" | 1/16" | 1 7/8" | 7/16" | Magnet | Steel | 0000000 | 00000 |
| 1/4" | 1/16" | 2 5/8" | 7/16" | Magnet | Steel | 0000000 | 0000 |
| 5/16" | 1/8" | 1 7/8" | 1/2" | Magnet | Steel | 0000000 | 0000 |
| 5/16" | 1/8" | 2 5/8" | 1/2" | Magnet | Steel | 0000000 | 0000 |
| 3/8" | 1/8" | 1 7/8" | 9/16" | Magnet | Steel | 0000000 | 0000 |
| 3/8" | 1/8" | 2 5/8" | 9/16" | Magnet | Steel | 0000000 | 0000 |
| 7/16" | 3/16" | 1 7/8" | 5/8" | Magnet | Steel | 0000000 | 0000 |
| 7/16" | 3/16" | 2 5/8" | 5/8" | Magnet | Steel | 0000000 | 0000 |
Fastener-Holding Nutdriver Bit Sets
A magnet holds the nut in place. These bits have a groove in the shank to fit directly into power tools.
| Components Included | Bits Included | Overall Lg. | Bolt Clearance | Fastener-Holding Mechanism | Overall Dia. | Material | Container Type | Each | |
1/4" Hex Shank Size for Power Tools | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 9 Bits | External Hex: 1/4" (2" O'all Lg.) External Hex: 1/4", 5/16" (1 5/8" O'all Lg.) External Hex: 1/4", 5/16", 3/8", 7/16" (2 5/8" O'all Lg.) External Hex: 3/8", 7/16" (1 3/4" O'all Lg.) | 1 5/8"-2 5/8" | 1/16"-7/16" | Magnet | 7/16"-5/8" | Steel | Plastic Caddy | 0000000 | 000000 |