GEDORE striking tools
Working Materials without Compromise
Drift punches, pin punches, centre punches, chisels, hollow punches and riveting tools are among the hand tools used for metalworking and woodworking, mechanical engineering, automotive workshops and trades.
Force is usually transferred to the positioned tool with a hammer. Depending on the tool shape, fasteners can be driven out of bores, drilling points marked, materials separated or removed, round holes punched and riveted joints closed. Regardless of the task for which the striking tool is used, maximum service life, precise geometries and maximum safety with every hammer blow are essential.
Driving Out Pins and Bolts
Drift punches and pin punches are functionally similar, but they are not identical. Both transmit impacts axially to pins or similar components. The main difference lies in the shape of the working end and the intended phase of the work process.
Drift punches have a stepped or tapered working end and can initially set pins, bolts or other components in motion. Pin punches have a largely constant working diameter over a longer section. This allows pins to be driven further through a bore after they have initially been loosened. The tools can be used consecutively within a workflow. A drift punch is particularly suitable for initially loosening a seized pin or aligning components during installation work. Once the pin is already moving and needs to be guided further through a bore, the long, uniform working section of a pin punch offers advantages.
Typical Applications
- Driving out bolts and pins
- Removing split pins and rivets
- Releasing fasteners during dismantling work
- Working on assemblies, machines and vehicles
- Use together with a hammer
Marking, Cutting and Working
A centre punch is a round or octagonal steel pin with a hardened, sharply tapered conical tip. When centre punching, the tip is positioned on the intended drilling point and struck with a hammer.
This creates a small indentation in the workpiece. It provides a starting point for the drill and reduces the risk of the drill slipping sideways on a smooth metal surface. The shape, tip angle and dimensions must suit the workpiece and the planned drilling operation. The tip concentrates the hammer blow on a small area. This makes it possible to mark machining points reproducibly and position tools more precisely for subsequent work. Tip design, shank size and workpiece material are important when making a selection. A finer tip creates a smaller mark, but is not designed for arbitrarily high impact forces. Larger centre punches offer correspondingly more robust dimensions for stronger markings.
Typical Workflow
- Define the drilling point on the workpiece.
- Position the centre punch tip on the marked point.
- Strike once with a suitable hammer.
- Position the drill in the resulting indentation.
Chisels are made of hardened tool steel and have a wedge-shaped cutting edge at the tip. Different shapes are used depending on the application, for example flat chisels or cross-cut chisels.
The hammer blow drives the cutting edge into the workpiece. This allows suitable material to be cut, slotted or removed. Typical tasks include cutting sheet metal, knocking off old screw heads, creating grooves and working on weld seams.
Typical Applications
- Cutting sheet metal and other suitable materials
- Slotting and creating grooves
- Removing material
- Knocking off old screw heads
- Working or smoothing weld seams
Openings and Riveted Joints
Hollow Punches and Riveting Tools
A hollow punch has a circular, sharply ground cutting edge on its underside. The cutting area is hollow on the inside. When the hollow punch is struck, the cutting edge is driven through the material and punches out a round hole. The punched-out material can be discharged upwards or outwards through the hollow shank. Hollow punches are therefore used for repeated punching operations with a consistent diameter.
Typical Applications
- Producing holes in leather
- Punching gasket and rubber materials
- Working cardboard and soft plastics
- Punching holes in tarpaulins and comparable soft materials
- Producing or adapting openings
Riveting tools are used to produce and close riveted joints. These include manual tools such as rivet setters and rivet snap tools as well as blind rivet pliers.
A rivet setter presses the sheets or components to be joined together and helps position the riveted joint correctly. A rivet snap tool forms the closing head of a rivet into a round shape. With blind rivet pliers, the rivet mandrel is pulled. This deforms the rivet shank on the rear side and permanently joins the components.
Typical Applications
- Joining sheet metal and suitable components
- Producing permanent riveted joints
- Installation and repair work
- Working on trim, housings and structures
- Use of manual riveting tools and blind rivet pliers
More Percussion Instrument Features
Alliance for Workplace Safety
When the hammer shaft strikes the chisel head, significant forces are released. Using GEDORE hammers in combination with GEDORE chisels is key to safe striking. If hammers and chisels are not ground according to specifications, a large portion of the applied force is not directed toward the chisel tip, which can lead to material spalling. GEDORE hammers and chisels are optimally matched to each other and, thanks to their properly specified geometric shape, direct most of the applied force toward the chisel tip.
The Most Important Facts at a Glance
Industry Standard+
High-quality industrial-grade construction for the toughest continuous use
Made in Germany
Manufacturing at GEDORE Plants
Steel Grades
Manufactured from 45CrMoV7 air-hardening steel
Answers to the Most Frequently Asked Questions
Drive pins are particularly well-suited for setting, loosening, and positioning. Split-pin drivers have a longer working range with a defined diameter and can drive a loosened pin further through a hole.
The width, shape, and geometry of the cutting edge determine how concentrated the impact is on the material and what type of machining is possible.
If openings of various diameters are produced on a regular basis and the available sizes are compatible with the material being used.
A center punch creates a defined indentation to mark a machining point.
