Screwbits are small interchangeable tips that are used with screwdrivers and power drills to drive screws into a variety of materials. They are made of different materials, such as high-speed steel, titanium, or cobalt, and come in a range of sizes and shapes to fit different types of screws.

Screwbits are designed to fit into the chuck of a screwdriver or power drill, allowing the user to quickly and easily change the bit for different screw types and sizes. They come in two main types: insert bits and power bits.

Insert bits are typically used with hand screwdrivers and come in a range of standard sizes, such as Phillips, slotted, Torx, and hex. These bits are usually sold in sets, and the user can insert the desired bit into the screwdriver shaft.

Power bits, on the other hand, are designed for use with power drills and impact drivers. They have a larger shank size, typically 1/4 inch, that fits into the drill chuck. These bits are often made of higher-quality materials to withstand the higher torque and force generated by power tools.

Some screwbits also have additional features, such as magnetic tips, which help to hold screws in place during installation, or tapered tips, which allow for a more secure grip on the screw head.

Overall, screwbits are a highly versatile and essential tool for anyone who regularly works with screws, providing flexibility and convenience in various applications.

Here is a general size chart for some common screwbit types:

• Phillips:
  • #0: 1/16 inch (1.6mm)
  • #1: 5/64 inch (2.0mm)
  • #2: 3/32 inch (2.4mm)
  • #3: 7/64 inch (2.8mm)
  • #4: 1/8 inch (3.2mm)
• Slotted:
  • 1/8 inch (3.2mm)
  • 5/32 inch (4.0mm)
  • 3/16 inch (4.8mm)
  • 1/4 inch (6.4mm)
• Torx:
  • T5: 1/16 inch (1.98mm)
  • T6: 5/64 inch (1.98mm)
  • T7: 3/32 inch (2.44mm)
  • T8: 1/8 inch (3.18mm)
  • T9: 5/32 inch (3.97mm)
  • T10: 3/16 inch (4.76mm)
  • T15: 7/32 inch (5.56mm)
  • T20: 1/4 inch (6.35mm)
  • T25: 5/16 inch (7.94mm)
• Hex:
  • 1/16 inch (1.6mm)
  • 5/64 inch (2.0mm)
  • 3/32 inch (2.4mm)
  • 7/64 inch (2.8mm)
  • 1/8 inch (3.2mm)
  • 9/64 inch (3.6mm)
  • 5/32 inch (4.0mm)
  • 3/16 inch (4.8mm)
  • 7/32 inch (5.6mm)
  • 1/4 inch (6.4mm)
  • 5/16 inch (8.0mm)
  • 3/8 inch (9.5mm)

It’s important to note that this size chart is general and may not include all sizes or variations of screwbits available. Always refer to the manufacturer’s specifications for the specific screwbit being used to ensure proper fit and avoid damaging the screw or the tool.