![Utoolmart Y Shape Screwdriver Bits, Y1+Y2+Y3+Y4 Magnetic Y Shape Head Magnetic Screw Driver Bit, with 1/4 Inch Hex Shank, 50mm Length S2 Steel Screw Driver Kit Tools, for Repair Work, 1 Set - - Utoolmart Y Shape Screwdriver Bits, Y1+Y2+Y3+Y4 Magnetic Y Shape Head Magnetic Screw Driver Bit, with 1/4 Inch Hex Shank, 50mm Length S2 Steel Screw Driver Kit Tools, for Repair Work, 1 Set - -](https://m.media-amazon.com/images/I/51xoqGhl6mL._AC_UF350,350_QL80_.jpg)
Utoolmart Y Shape Screwdriver Bits, Y1+Y2+Y3+Y4 Magnetic Y Shape Head Magnetic Screw Driver Bit, with 1/4 Inch Hex Shank, 50mm Length S2 Steel Screw Driver Kit Tools, for Repair Work, 1 Set - -
![mechanical engineering - What is this Y-shaped screwdriver bit, and what is its purpose? - Engineering Stack Exchange mechanical engineering - What is this Y-shaped screwdriver bit, and what is its purpose? - Engineering Stack Exchange](https://i.stack.imgur.com/6A1Be.jpg)
mechanical engineering - What is this Y-shaped screwdriver bit, and what is its purpose? - Engineering Stack Exchange
![Utoolmart Y Shape Screwdriver Bits, Y1+Y2+Y3+Y4 Magnetic Y Shape Head Magnetic Screw Driver Bit, with 1/4 Inch Hex Shank, 50mm Length S2 Steel Screw Driver Kit Tools, for Repair Work, 1 Set - - Utoolmart Y Shape Screwdriver Bits, Y1+Y2+Y3+Y4 Magnetic Y Shape Head Magnetic Screw Driver Bit, with 1/4 Inch Hex Shank, 50mm Length S2 Steel Screw Driver Kit Tools, for Repair Work, 1 Set - -](https://m.media-amazon.com/images/I/51VcD-SGbsL.jpg)
Utoolmart Y Shape Screwdriver Bits, Y1+Y2+Y3+Y4 Magnetic Y Shape Head Magnetic Screw Driver Bit, with 1/4 Inch Hex Shank, 50mm Length S2 Steel Screw Driver Kit Tools, for Repair Work, 1 Set - -
![mechanical engineering - What is this Y-shaped screwdriver bit, and what is its purpose? - Engineering Stack Exchange mechanical engineering - What is this Y-shaped screwdriver bit, and what is its purpose? - Engineering Stack Exchange](https://i.stack.imgur.com/SmZP6.jpg)
mechanical engineering - What is this Y-shaped screwdriver bit, and what is its purpose? - Engineering Stack Exchange
![Silverhill Tools ABSTW1 Triwing Bit Set starting with size .6mm (Y000) for iPhone, 8 Tri-Wing (Y) sizes included up to Y5 Silverhill Tools ABSTW1 Triwing Bit Set starting with size .6mm (Y000) for iPhone, 8 Tri-Wing (Y) sizes included up to Y5](https://c.shld.net/rpx/i/s/pi/mp/10160405/prod_9662251032?src=https%3A%2F%2Fm.media-amazon.com%2Fimages%2FI%2F417All7Ir2L.jpg&d=e47e85c119c534ce7278ffb09522dd6ae3a729b5&hei=1000&wid=1000)
Silverhill Tools ABSTW1 Triwing Bit Set starting with size .6mm (Y000) for iPhone, 8 Tri-Wing (Y) sizes included up to Y5
![4Pcs Screwdriver Bits Y Type Bit Screw Bits Triangle-Shaped Bits Flutes Magnetic Bits for Electric Screwdrivers with 1/4Inch Hex Shaft - - Amazon.com 4Pcs Screwdriver Bits Y Type Bit Screw Bits Triangle-Shaped Bits Flutes Magnetic Bits for Electric Screwdrivers with 1/4Inch Hex Shaft - - Amazon.com](https://m.media-amazon.com/images/I/61lZZf1GM7S._AC_UF894,1000_QL80_.jpg)
4Pcs Screwdriver Bits Y Type Bit Screw Bits Triangle-Shaped Bits Flutes Magnetic Bits for Electric Screwdrivers with 1/4Inch Hex Shaft - - Amazon.com
![Utoolmart Y Shape Screwdriver Bits, Y1+Y2+Y3+Y4 Magnetic Y Shape Head Magnetic Screw Driver Bit, with 1/4 Inch Hex Shank, 50mm Length S2 Steel Screw Driver Kit Tools, for Repair Work, 1 Set - - Utoolmart Y Shape Screwdriver Bits, Y1+Y2+Y3+Y4 Magnetic Y Shape Head Magnetic Screw Driver Bit, with 1/4 Inch Hex Shank, 50mm Length S2 Steel Screw Driver Kit Tools, for Repair Work, 1 Set - -](https://m.media-amazon.com/images/I/51bimlKHqnL._AC_UF894,1000_QL80_.jpg)
Utoolmart Y Shape Screwdriver Bits, Y1+Y2+Y3+Y4 Magnetic Y Shape Head Magnetic Screw Driver Bit, with 1/4 Inch Hex Shank, 50mm Length S2 Steel Screw Driver Kit Tools, for Repair Work, 1 Set - -
![5pcs/set Y shaped Torx Screwdriver bits for Bicycle anti theft screws Trident Trigeminal triangular head Electric pneumatic Bit|screwdriver bits|torx screwdriver bitstorx screwdriver - AliExpress 5pcs/set Y shaped Torx Screwdriver bits for Bicycle anti theft screws Trident Trigeminal triangular head Electric pneumatic Bit|screwdriver bits|torx screwdriver bitstorx screwdriver - AliExpress](https://ae01.alicdn.com/kf/HTB1UHpEljihSKJjy0Fiq6AuiFXaQ.jpg?size=73084&height=800&width=800&hash=d763a9183e7d9c6a38283a1c4c57d98f)
5pcs/set Y shaped Torx Screwdriver bits for Bicycle anti theft screws Trident Trigeminal triangular head Electric pneumatic Bit|screwdriver bits|torx screwdriver bitstorx screwdriver - AliExpress
![mechanical engineering - What is this Y-shaped screwdriver bit, and what is its purpose? - Engineering Stack Exchange mechanical engineering - What is this Y-shaped screwdriver bit, and what is its purpose? - Engineering Stack Exchange](https://i.stack.imgur.com/SfiAU.jpg)
mechanical engineering - What is this Y-shaped screwdriver bit, and what is its purpose? - Engineering Stack Exchange
![Utoolmart Y Shape Screwdriver Bits, Y1+Y2+Y3+Y4 Magnetic Y Shape Head Magnetic Screw Driver Bit, with 1/4 Inch Hex Shank, 50mm Length S2 Steel Screw Driver Kit Tools, for Repair Work, 1 Set - - Utoolmart Y Shape Screwdriver Bits, Y1+Y2+Y3+Y4 Magnetic Y Shape Head Magnetic Screw Driver Bit, with 1/4 Inch Hex Shank, 50mm Length S2 Steel Screw Driver Kit Tools, for Repair Work, 1 Set - -](https://m.media-amazon.com/images/I/51ZLRmuNgdL._AC_UF350,350_QL80_.jpg)
Utoolmart Y Shape Screwdriver Bits, Y1+Y2+Y3+Y4 Magnetic Y Shape Head Magnetic Screw Driver Bit, with 1/4 Inch Hex Shank, 50mm Length S2 Steel Screw Driver Kit Tools, for Repair Work, 1 Set - -
![50mm Security Tamper Proof Magnetic Screwdriver Drill Bit Y3 Y4 Screw Driver Bits Y Type Head 1/4" Hand Tools - Screwdriver - AliExpress 50mm Security Tamper Proof Magnetic Screwdriver Drill Bit Y3 Y4 Screw Driver Bits Y Type Head 1/4" Hand Tools - Screwdriver - AliExpress](https://ae01.alicdn.com/kf/H874ecf8b0d984630b99175c37682c617A/50mm-Security-Tamper-Proof-Magnetic-Screwdriver-Drill-Bit-Y3-Y4-Screw-Driver-Bits-Y-type-Head.jpg_Q90.jpg_.webp)