The Park Tool AWS-1 is the classic Y hex wrench with 4, 5 and 6 mm hex keys, the three sizes found most often on modern bikes. Park Tool introduced this three-way wrench more than forty years ago and it is still one of the most used tools on mechanics' benches.
The Y shape sits in the palm and gives good leverage: one arm works as the wrench and the other two as the handle. The wrenches are heat-treated industrial tool steel with chamfered tips for a precise fit, while the centre is glass-fibre reinforced polymer.
Where to use the Park Tool AWS-1 Y wrench
- Adjusting and tightening stems and handlebars.
- Seatpost clamps and heads, for saddle height and setback.
- Mounting brake levers, shifters and calipers.
- Fixing derailleurs and many other components with 4, 5 or 6 mm socket head bolts.
Why choose Park Tool AWS-1
- Three sizes always in hand, with no searching through a set.
- Ergonomic grip that lets you apply force without tiring your hand.
- Heat-treated tool steel for a long service life.
- Chamfered tips that engage easily and fit the bolt snugly.
- A proven tool that has been a reference for mechanics for decades.
Simple and sturdy, the Park Tool AWS-1 4/5/6 mm Y hex wrench deserves a permanent place on the workbench and in the home toolbox.
TECHNICAL SPECIFICATIONS
General
- Code: Park Tool AWS-1
- Type: Three-way Y hex wrench
Dimensions
- Sizes: 4, 5, 6 mm
- Tips: Chamfered
Materials
- Wrenches: Heat-treated industrial tool steel
- Centre body: Glass-fibre reinforced polymer
The Park Tool AWS-1 is the classic Y hex wrench with 4, 5 and 6 mm hex keys, the three sizes found most often on modern bikes. Park Tool introduced this three-way wrench more than forty years ago and it is still one of the most used tools on mechanics' benches.
The Y shape sits in the palm and gives good leverage: one arm works as the wrench and the other two as the handle. The wrenches are heat-treated industrial tool steel with chamfered tips for a precise fit, while the centre is glass-fibre reinforced polymer.
Where to use the Park Tool AWS-1 Y wrench
- Adjusting and tightening stems and handlebars.
- Seatpost clamps and heads, for saddle height and setback.
- Mounting brake levers, shifters and calipers.
- Fixing derailleurs and many other components with 4, 5 or 6 mm socket head bolts.
Why choose Park Tool AWS-1
- Three sizes always in hand, with no searching through a set.
- Ergonomic grip that lets you apply force without tiring your hand.
- Heat-treated tool steel for a long service life.
- Chamfered tips that engage easily and fit the bolt snugly.
- A proven tool that has been a reference for mechanics for decades.
Simple and sturdy, the Park Tool AWS-1 4/5/6 mm Y hex wrench deserves a permanent place on the workbench and in the home toolbox.
TECHNICAL SPECIFICATIONS
General
- Code: Park Tool AWS-1
- Type: Three-way Y hex wrench
Dimensions
- Sizes: 4, 5, 6 mm
- Tips: Chamfered
Materials
- Wrenches: Heat-treated industrial tool steel
- Centre body: Glass-fibre reinforced polymer
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