Is there a 1/2" version?

per the PROTO website, they are only manufactured in 1/2" drive

What is the width of the wrench 9/16 end. I have a shovelhead cylinder bolts to tighten and sockets wont fit, too tight between fins?

This works great on my 78 FXS Shovelhead Lowrider.

Would it be possible to purchase a (3/8 drive torque adapter 1/4-inch) without having to buy the entire torque adapter set?

Probably. I purchased the single 3/8’s drive x9/16 one. So I would imagine you could fine that one without purchasing the entire kit.

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Description

🛠️ Torque with precision, power, and pride — the pro’s secret weapon!

UNMATCHED DURABILITY - Crafted from heat-treated alloy steel to withstand rigorous professional use without compromise.
COMPACT LIGHTWEIGHT - At just 1.44 ounces and slim 3.4" length, it fits seamlessly into any tool kit or workspace.
OPTIMIZED ACCESS DESIGN - Engineered box end wall thickness balances strength with easy reach to tight fasteners.
PRECISION TORQUE CALIBRATION - Exact 2" center-to-center dimension simplifies torque calculations for flawless results.
TRUSTED AMERICAN CRAFTSMANSHIP - Manufactured by Stanley Proto in the USA, ensuring premium quality and reliability.

The Stanley Proto J5118 3/8" Drive Torque Adapter 9/16" is a precision-engineered tool accessory designed for professional torque calibration. Featuring a consistent 2" center-to-center measurement, heat-treated alloy steel construction, and a smartly optimized design for access to tight fasteners, this lightweight adapter delivers durability and accuracy. Proudly made in the USA by Stanley Proto, it’s built to meet the demands of serious tradespeople and managers who value quality and efficiency.

Specifications

Color	Multi
Brand	Proto
Material	Alloy Steel
Item Package Quantity	1
Head Style	Fixed Square
Finish Type	Brushed
Operation Mode	Electric
Manufacturer	Stanley Proto
UPC	662679164591
Global Trade Identification Number	00662679164591
Part Number	J5118
Item Weight	1.44 ounces
Product Dimensions	3.4 x 1.8 x 0.3 inches
Item model number	J5118
Is Discontinued By Manufacturer	No
Size	One Size
Style	Classic
Finish	Brushed
Pattern	Solid
Shape	Rectangular
Thickness	1 Inches
Power Source	hand_powered
Measurement System	inch
Included Components	Product & Instructions Guide
Batteries Required?	No
Warranty Description	Manufacturer

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