Katco Tools
KTC-D3 & KTC-D4 Pneumatic D-Handle Chipping Hammer
KTC-D3 & KTC-D4 Pneumatic D-Handle Chipping Hammer
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FEATURES
- D-Handle Chipping Hammer
- Oval Retainer, Ball Retainer or Screw-on Ball Retainer
SCHEMATIC
KTC-D3, D4 Schematic: Click Here
KTC-D3, D4 Escquemático : En español haz clic aquí
SPECIFICATIONS
| Item Model Number | KTC-D3 |
| Blows Per Minute | 2200 B.P.M. |
| Bore | 1.125 inch (29 mm) |
| Stroke | 3 inch (75 mm) |
| Net Weight | 15 lbs (6.5 kg) |
| Chuck Sizes |
0.58 inch (14.8 mm) Hex 0.68 inch (17.5 mm) Round |
| Air Inlet (NPT) | 3/8 inch (10 mm) |
| Air Consumption |
29.75 cfm (0.84 m3/m)
|
| Length | 15.5 inch (395 mm) |
| Item Model Number | KTC-D4 |
| Blows Per Minute | 1200 B.P.M. |
| Bore | 1.125 inch (29 mm) |
| Stroke | 4 inch (102 mm) |
| Net Weight | 19 lbs (8.5 kg) |
| Chuck Sizes |
0.58 inch (14.8 mm) Hex 0.68 inch (17.5 mm) Round |
| Air Inlet (NPT) | 3/8 inch (10 mm) |
| Air Consumption |
36 cfm (1.1 m^3/m)
|
| Length | 17 inch (432 mm) |
APPLICATION
Concrete Demolition & Surface Repair
The KTC-D3 and D4 deliver high-impact chipping power to break away excess concrete, patch damaged slabs, and remove formwork spatter quickly. Contractors use these pneumatic hammers to expose rebar, chisel bridge decks, and prepare concrete surfaces for repair mortars.
Metal Fabrication, Welding & Foundry Work
These air-powered chipping hammers quickly remove heavy weld slag, clean castings, and strip metal core sand in high-production fabrication shops. The ergonomic D-handle gives operators precise control to chisel away thick spatter and foundry scale without damaging base metals.
Masonry, Brick & Mortar Restoration
Engineered for controlled masonry demolition, these tools chip out hardened tuckpointing mortar, break old brick, and trim architectural stone cleanly. The choice between 3-inch and 4-inch strokes lets restoration crews select the exact impact power needed for delicate masonry or heavy stone splitting.
Industrial Plant & Tank Scaling
Designed for heavy industrial maintenance, this tool chips away stubborn boiler scale, rust crusts, chemical build-up, and dried cement inside mixing drums. The multiple retainer options ensure fast, secure chisel changes while working inside tight industrial vessels and processing piping.
Frequently Asked Questions (FAQ)
What is the difference between the KTC-D3 and KTC-D4 chipping hammers?
The KTC-D3 has a 3-inch stroke delivering 2,200 BPM at 15 lbs for faster, lighter chipping and weld cleaning. The KTC-D4 features a longer 4-inch stroke delivering 1,200 BPM at 19 lbs, providing harder-hitting impact for heavy concrete removal.
What size air compressor and hose do I need to run these chipping hammers?
The KTC-D3 requires at least 30 CFM and the KTC-D4 requires at least 36 CFM, both operating through a standard 3/8-inch NPT air hose connection at 90 PSI.
What chuck sizes and retainer styles are available?
Both models accept 0.58-inch Hex or 0.68-inch Round chisel shanks. You can choose between an oval retainer, ball retainer, or screw-on ball retainer depending on your preferred locking mechanism and bit-changing speed.
How do I maintain and lubricate the KTC-D chipping hammer?
Add 3 to 4 drops of pneumatic tool oil into the 3/8-inch air inlet daily before each shift, or use an inline lubricator. Always disconnect and bleed the air supply line before changing chisels, retainers, or servicing internal parts.
