Supabit 3/8in Magnetic Nutsetter 150mm
The Sutton Tools Supabit S132 is a 3/8 inch magnetic nutsetter at 150mm long, built for driving hex head nuts and screws in an impact driver. The magnetic tip holds the fastener on the bit, and the 1/4 inch hex shank with a power groove fits impact drivers and quick change adapters. Supabit Extreme Impact bits are developed for the high torque output of an impact driver.
Key Features
- Hex opening used to drive hex head nuts and screws
- Magnetic tip increases productivity at awkward angles and in tight spaces
- 3X torque: torque tested to exceed DIN standards by up to 330%
- 1/4 inch hex shank with power groove for impact drivers and quick change adapters
- Cold forged from premium shock resisting S2 tool steel at 58-62HRC
- Manganese Phosphate coating for hardness and corrosion resistance
Specifications
- Size: 3/8 inch
- Length: 150mm
- Material: CRV
- Finish: manganese phosphate
- Type: magnetic nutsetter
- Shank: 1/4 inch hex with power groove
Applications
- Driving hex head screws in metal roofing and cladding
- Driving hex head nuts and bolts in assembly work
- Reaching hex fasteners in recessed or tight spots
- Roofing, gutter and general metal work with an impact driver
What You Need To Complete The Job
Keep the 5/16 inch 150mm nutsetter and the 65mm version in the kit for other screw sizes, and add a hex bit set for mixed fastening. See the General Hand Tools range for more driving accessories.
Frequently Asked Questions
What is a magnetic nutsetter?
A nutsetter is a socket style bit for driving hex head nuts and screws, and a magnetic version holds the fastener on the bit with a magnet. That makes it easy to start a screw one handed and keeps it on the bit while you position it. Nutsetters are widely used in roofing to drive hex head screws.
Why choose the 150mm length?
The 150mm length reaches hex head screws that sit in recessed profiles, behind edges or in tight corners where a short bit cannot get a straight drive. It suits work on metal roofing, gutters and cladding where the fastener is not always easy to reach. For general work a 65mm nutsetter is easier to control.
Is this bit for an impact driver?
Yes. The 1/4 inch hex shank with a power groove is made for impact drivers and quick change adapters. The Supabit Extreme Impact range is developed for the high torque output of an impact driver, and the torsion and hardening are built for that kind of work.
What is the 3X torque claim?
The listing states the bit is torque tested to exceed DIN standards by up to 330%, which the range describes as 3X torque. That means the bit is designed to handle high torque impact applications without snapping. The cold forged S2 steel and manganese phosphate finish support that strength.



