Screwdriver bits are often just called "bits," but you might also hear them referred to as "driver bits" or "insert bits." These small, interchangeable pieces fit into the end of a screwdriver handle or power drill, letting you tackle a variety of screw types and sizes. Common types include:

• Phillips bits
• Slotted (flathead) bits
• Torx bits
• Hex bits
• Square (Robertson) bits

Each bit is designed to match a specific screw head, so having a set on hand makes it easy to switch between tasks.

PH2 and PZ2 refer to different types of screwdriver bits that fit similar-looking screws but have unique designs. PH2 stands for Phillips #2, which has a cross-shaped tip. PZ2 means Pozidriv #2, which looks similar but has extra lines between the main cross slots for better grip and less cam-out. Using the right bit helps reduce slipping and wear on both the bit and the screw. If you're unsure, check the screw head—Pozidriv screws usually have small lines between the slots.

There are many types of screwdriver bits, each designed for a specific screw head. Here are some of the most common:

• Phillips: Cross-shaped, popular for general use
• Slotted: Flat blade, fits straight slots
• Torx: Star-shaped, often used in electronics and automotive work
• Hex: Six-sided, common for furniture assembly
• Square (Robertson): Square tip, known for a secure fit
• Security bits: Specialized shapes for tamper-resistant screws

Having a variety of bits makes it easier to handle different projects around the house.

Absolutely! Here are six popular screwdriver tip styles you’ll find in most bit sets:

1. Phillips – Cross-shaped for standard screws
2. Slotted – Flat blade for straight slots
3. Torx – Star-shaped for high-torque applications
4. Hex – Six-sided for bolts and set screws
5. Square (Robertson) – Square tip for a snug fit
6. Pozidriv – Similar to Phillips, but with extra grip lines

Each style is designed to fit a specific screw head, so having a mix can help you tackle a wider range of tasks.

Choosing the right screwdriver bit depends on the screw head and the job you’re tackling. Here’s what to look for:

• Match the bit to the screw head (Phillips, slotted, Torx, etc.)
• Choose the correct size—the bit should fit snugly without wobbling
• Consider the material—impact-rated bits are better for power tools
• Look for magnetic tips if you want to hold screws in place easily

Having a set with multiple types and sizes can help you handle most projects around the house or workshop.