Key Features
Built for Roll Pins The rounded center tip fits into the hole of a roll pin so the Knipex 9R 455 722 KUS 1/8 in. x 6 in. Roll Pin Punch can drive it out with less chance of slipping off and damaging the pin. Hard Through the Core Forged chrome vanadium steel and full-length tempering to 54 to 58 HRC give you a punch that holds up to repeated hammer strikes, not just a hardened tip. Octagon Won’t Wander The octagonal body is easier to hold while setting up a strike and less likely to roll off a bench when you put it down.
Overview
The Knipex 9R 455 722 KUS 1/8 in. x 6 in. Roll Pin Punch is a hand punch made for removing roll pins with better control and less damage to the pin. This is a roll pin punch designed for driving out roll pins in mechanical, shop, and general repair work. Model Number: 9R 455 722 KUS.
What separates a roll pin punch from a standard pin punch is the tip design, and that matters here. The center of the tip has a rounded section that fits inside the hole created by the roll pin. In real use, that helps the punch stay centered as you strike it, which reduces the odds of walking off the pin and marking the surrounding part.
Knipex lists this punch as forged from hardened chrome vanadium steel, with the tool tempered throughout the full length to 54 to 58 HRC. That is the kind of spec that actually means something on the job: the whole tool is built to take repeated impact, not just the working end. The core design also helps prevent mushrooming at the striking head, which is one of the first failure points on cheaper punches.
The body shape is another practical detail. Instead of a round shank that wants to roll off a cart or workbench, this punch uses an octagonal shape for a more secure grip and better bench behavior. If you use punches regularly, that is a small improvement you notice fast.
The tip is ground and polished, which helps with cleaner engagement on the pin and more predictable placement before the hammer comes down. For precision work, especially where surrounding parts are already finished or closely fitted, that kind of control is more important than flashy coatings or gimmicks.
This Knipex roll pin punch complies with DIN 7255 and is made in Germany. It is a straightforward shop tool, but a well-made one: 1/8 inch tip diameter, 6 inch overall length, forged steel construction, and a shape that is built for repeated striking. If you work on machinery, automotive assemblies, firearms, small equipment, or general mechanical repairs, this is the right style of punch for roll pin removal rather than a general-purpose drift.
Bottom line: this is for users who want the correct punch for the job instead of forcing a standard punch to do roll pin work. Pros and serious DIY users will appreciate the centered tip, the through-hardened steel, and the simple fact that it is built to last through repeated use.
Stay Centered on the Pin
This punch is built for one job: removing roll pins without beating up the pin or the part around it. The shaped center tip helps the tool register inside the roll pin instead of skating across the surface.
- 1/8 in. tip diameter for matching small roll pin work
- Rounded center section helps guide the punch into the roll pin opening
Made to Take Repeated Strikes
Cheap punches usually fail at the head or deform after enough hammer time. This one is forged from chrome vanadium steel, tempered through the full tool, and designed to resist mushrooming at the striking end.
- 54 to 58 HRC hardness through the entire length
- Material core design helps reduce head deformation
Key Specifications
| Tool Type | Roll Pin Punch |
|---|---|
| Overall Length | 6 in. |
| Tip Diameter | 1/8 in. |
| Width | 1/8 in. |
| Height | 3/8 in. |
| Material | Chrome Vanadium Steel |
| Hardness | 54 to 58 HRC |
| Made In | Germany |
Built For
Automotive Mechanical Repair Metalworking Construction Woodworking Leatherworking
Pro Tip
If a roll pin is stubborn, use the rounded center tip to seat the punch squarely in the pin before the first strike. Starting straight matters more than swinging harder, especially on small 1/8 inch pins.
Tool Nut’s Take
Tool Nut’s Take
Knipex 9R 455 722 KUS 1/8 in. x 6 in. Roll Pin Punch Gets the Job Done Right
This is the kind of simple hand tool that earns its keep because it is made correctly for the job, not because it tries to do five other things.
- Who it’s for: Anyone doing roll pin removal in automotive, machinery, or general repair work who wants the proper punch instead of improvising with a standard pin punch.
- Why it stands out: The centered roll-pin tip, through-hardened chrome vanadium steel, and octagonal body all solve real problems you run into when using punches regularly.
- Worth knowing: This is a single-purpose striking tool. If you mainly work with solid pins instead of roll pins, you will want the correct matching punch style for those too.
Common Questions
- What is this punch designed to do? It is designed primarily to remove roll pins.
- What size is the tip? The tip diameter is 1/8 inch.
- What steel is it made from? It is forged from hardened chrome vanadium steel.
- Where is it made? Source data lists Germany as the country of origin.
- Does it meet a standard? Yes. Source data states it complies with DIN 7255.
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