Iyeltak:TriWing-and-Y-Type-screwdriver-bits-and-screw-heads.jpg — Wikipedia

1PC 50mm Tri-wing Y Shaped Screwdriver Bits 1/4Inch Hex Shank Y

Screwdriver - Simple English Wikipedia, the free encyclopedia

Screw profile guide

What is the 'Y' shaped bit with the deeper middle groove cut out

ABSTW1 Triwing Bit Set starting with size .6mm (Y000

File:Tri-Wing screw and tool (TW2).jpg - Wikimedia Commons

ABSTW1 Triwing Bit Set starting with size .6mm (Y000

Screw profile guide

List of screw drives - Wikipedia

Material: Chrome Vanadium Steel (CR-V) Y-type screwdriver head size:Y3 Y4 Y5 Y6 Anti-slip rubber handle,comfortable to hold.Professional and practical

4PCS Y-type Magnetic Tip Screwdriver Anti-slip Repair Tool(Y3 Y4 Y5 Y6)

11 Strange Screws You Don't See Every Day