Robertson Screwdriver Sizes Chart
Robertson screwdriver sizes chart
Currently, there are five different Robertson screwdriver types available, with suitable screw size indicated by the color. Orange drivers (#00) are appropriate for use with screw types 1 and 2. The recess size range (the size of the corresponding square imprint on the screw) is from 1.77-1.80 mm.
What are 4 different sizes of Robertson screwdrivers?
The green #1 drive bits are 1”, 2” or 4” long and fit screw sizes #5, #6 and #7. The red #2 drive bits are 1”, 2”, 4” or 6” long and fit screw sizes #8, #9 and #10. The black #3 driver bits are 1”, 2”, 4” or 6” long and fit screw sizes #12 and #14.
What are the sizes of screwdrivers?
While screw size is shrouded in mystery, there are four basic sizes of Phillips screwdriver — from #0 to #4 — #0 being the smallest. The most common sizes are #2 and #1, #2 for standard screw sizes, #1 for “miniature”. Then there are the jeweler-size screws.
What is a #2 Robertson?
Product Number T68512. 2 piece, industrial grade, hardened tool steel tips. Hardened tool steel tips manufactured in Canada.
What is the most common size Robertson screwdriver?
The Robertson is also commonly referred to as a square driver, but Robertson is the correct term. Like the Phillips, the #2 size Robertson is the most common.
What Colour is a #2 Robertson screwdriver?
#0 Recess = Yellow. #1 Recess = Green. #2 Recess = Red. #3 Recess = Black.
What number is a red Robertson screwdriver?
Robertson #2 (Red) Screwdrivers.
What number is a black Robertson screwdriver?
#2 Recess = Red. #3 Recess = Black.
What size is a T4 screwdriver?
| Torx Size | Imperial Point to Point (inches) | Metric Point to Point |
|---|---|---|
| T1 | .031" | .81mm |
| T2 | .036" | .93mm |
| T3 | .046" | 1.10mm |
| T4 | .050" | 1.28mm |
How do I know what size screwdriver to buy?
If the screwdriver does snugly into the screw head snugly, the screwdriver size may be too large. The best size of screwdriver for the job will be the one that fits snugly into the screw head without wobbling, and without unseating at the slightest turn.
What are the 4 types of screwdrivers?
4 Types of Screwdrivers Every DIYer Should Own
- Flat Type Screwdrivers.
- Phillips (PH) Type Screwdrivers. ...
- Pozidriv (PZ) Type Screwdrivers. ...
- Torx Tamper-Proof (TPX) Type Screwdrivers. ...
- Teng Tools Screwdrivers.
What are 5 different types of screwdrivers?
Types of Screwdrivers
- Phillips Screwdriver. Also known as cross-head screwdrivers, Phillips screwdrivers are one of the most common types.
- Torx or Star Screwdriver. ...
- Insulated Screwdrivers. ...
- Torque Screwdrivers. ...
- Flathead Screwdriver. ...
- Tri-Wing Screwdriver. ...
- Pozidriv Screwdriver. ...
- Hex Screwdriver.
Why are there no Robertson screws in America?
Most historians attribute its lack of popularity in the United States to Henry Ford. Having been nearly bankrupted by shady European licensees, Robertson refused to license his invention to Ford. Without a guaranteed supply, Ford turned to the Phillips-head screw, cementing its reign in American industry.
Is square Drive the same as Robertson?
Most of us call Robertson screws “square drive” or “socket head” screws. They were invented by Canadian traveling salesman Peter Robertson around 1906. Up until that time, almost all screws were “straight drive” or “slot head” screws.
Is Robertson same as square?
Although the terms "square drive" and "Robertson" are often treated as the same in catalogs, the difference (as I understand it) is that Robertson tools and screws have a slight taper to the square recess and the square drive ones do not. Most online sources claim that the tapered design is superior.
What size is a #1 flathead screwdriver?
| Slot/ Flathead | Philips | |
|---|---|---|
| 2 | ⅛” / 3.2mm | #1 |
| 3 | 5/32” / 4.0mm | #1 |
| 4 | 3/16” / 4.8mm | #1 |
| 5 | 3/16” / 4.8mm | #2 |
What is a #2 screwdriver?
The #2 is a 1/4" shaft, perfect for derailleur adjustment screws. It is the most common cross tip ("Phillips") required.
What size screw is a red handled Robertson used for?
This screwdriver suits screw gauges 8-10 (the most popular sizes). Robertson screwdrivers are easy to use one-handed, because the tapered square head tends to retain the screw, even if it is shaken.
What size is #2 square screwdriver?
KLEIN TOOLS General Purpose Square Screwdriver: #2 Tip Size, 8 1/4 in Overall Lg, 4 in Shank Lg - 2DGG7|662 - Grainger.
What size is #2 square bit?
#2 Square Drive Bit, 1 inch Long, 1/4 inch Hex Drive, Hardended Steel, Recessed Point Driver Bit. Guaranteed Quality and Performance.
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