1/4 " (F) drive tool to 1/2" (M) drive socket, small fly big fly. Mainly to improve the hole machining accuracy, reducing the surface roughness, is used for hole finishing and semi-fine processing tool.
eBay
SucceBuy Mechanics Tool Set and Socket Set 1/4" 3/8" 1/2" Drive Deep Standard Sockets 450 Pcs SAE and Metric Mechanic Tool Kit
Aliexpress UK
Specifications:Size: 1/4" Female to 1/2" Male Square Drive IncreaserTotal Length: 31.5mm / 1.24"Material: CR-MO Steel (Chromium-Molybdenum Steel)Finish: Black PhosphatePackage Content: 2pcs x Impact Socket Adapter ConverterDescriptions:The socket adapter is made of CR-MO (chrome-molybdenum) steel, known for its high strength and durability. Black phosphate coating protects against corrosion and rust, enhances durability, and helps reduce friction during use for smoother operation. Special spring loaded ball detent locks your socket into place and secures it through the hole, also allowing for the use of locking pins for stability and superior execution. The socket wrench adapter ensures a secure connection between different square drive sizes for safe use.
eBay
Multi-function 1/4" 3/8" 1/2" Drive Sliding T-bar 115-250mm HCS Socket Drive T-handle Breaker Bar
Aliexpress UK
It needs working with another socket. 1 Socket Adapter. Material: Steel. Note: The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
eBay
3/6PCS Set 1/4'' 3/8'' 1/2'' Metric Socket Trays Rack Holder Storage Tool
Aliexpress UK
Socket Adapter Socket Wrench Socket Nuts Reducer 1/4" Socket to 1/2" Plug. 1 x Socket Adapter.
eBay
8Pcs 70500 Tap Socket Set with 1/4" & 3/8" Drive, Fit Fractional MCTI Standard Tap thru 1/2" &1/8" NPT taps Metric Tap thru 12mm
Aliexpress UK
1/4" 3/8" 1/2" Female to Male Drive Socket Spanner Converter Wrench Adapter Part. This item can NOT be used on a spanner directly. It needs working with another socket. 1 Socket Adapter. Do not run through your life so fast that you forget not only where you have been, but also where you are.
eBay
1/8" 1/4" 3/8" 1/2" NPT Female To Male BSP Brass Pipe Fitting Adapter For Pressure Gauge Gas Fuel Water
Aliexpress UK
Specifications:Size: 1/4" Female to 1/2" Male Square Drive IncreaserTotal Length: 28mm / 1.1"Material: 45# Carbon SteelFinish: Chrome Plated & PolishedColor: SilverPackage Content: 1pcs x Impact Socket AdapterDescriptions:The socket adapter is made from 45# carbon steel, known for its hardness and durability. The chrome plating prevents rust and corrosion for enhanced durability; the polished finish provides a smooth surface to reduce friction, ensuring smoother use in a variety of applications. Special spring loaded ball detent locks your socket into place and secures it through the hole, also allowing for the use of locking pins for stability and superior execution. The socket wrench adapter ensures a secure connection between different square drive sizes for safe use.
eBay
YQBS Elbow 90 degree RO Aquarium Accessories Quick Connector 1/8 1/4 3/8 1/2 3/4 BSP Female Thread Adapter Combination Tube
Aliexpress UK
Specifications:Size: 1/2" Female to 1/4" Male Square Drive ReducerTotal Length: 34mm / 1.34"Material: 45# Carbon SteelFinish: Chrome Plated & PolishedColor: SilverPackage Content: 1pcs x Impact Socket AdapterDescriptions:The socket adapter is made from 45# carbon steel, known for its hardness and durability. The chrome plating prevents rust and corrosion for enhanced durability; the polished finish provides a smooth surface to reduce friction, ensuring smoother use in a variety of applications. Special spring loaded ball detent locks your socket into place and secures it through the hole, also allowing for the use of locking pins for stability and superior execution. The socket wrench adapter ensures a secure connection between different square drive sizes for safe use.
eBay
1/8" 1/4" 3/8" 1/2" 3/4" 1" BSPP M8 M10 M14 M16 M18 M20 Female 304 Stainless Hex Nut Rod Pipe Adapters Max Pressure 8000 psi
Aliexpress UK
1/4" 3/8" 1/2" Female to Male Drive Socket Spanner Converter Wrench Adapter Part. This item can NOT be used on a spanner directly. It needs working with another socket. Solder Seal Sleeve. 1 Socket Adapter.
eBay
M14*1.5 M20*1.5 M10 16 22 Brass Pipe Hex Nipple Fitting Quick Coupler Adapter 1/8 1/4 1/2 Pressure gauge conversion copper joint
Aliexpress UK