Komatsu JMHB660H-1 Moil Point – Replacement for Part No. 86780327
Our aftermarket Komatsu JMHB660H-1 Moil Point is a heavy-duty replacement working tool, made to match OEM reference number 86780327. It is designed for the Komatsu JMHB660H-1 hydraulic breaker. The pointed tip concentrates impact energy on a small area, which makes it a strong choice for breaking concrete, splitting rock and demolition work where deep penetration matters.
Komatsu JMHB660H-1 Moil Point Technical Specifications
| Specification | Value |
|---|---|
| OEM Reference No. | 86780327 |
| Tool Type | Moil Point |
| Compatible Breaker | Komatsu JMHB660H-1 |
| Diameter | 190 mm / 7.48 in |
| Length | 1,660 mm / 65.35 in |
| Weight | 324 kg / 714 lb |
With a 190 mm shank diameter and a 1,660 mm working length, this replacement moil point suits large carriers and high-impact breaking jobs.
What Is a Moil Point Breaker Tool?
A moil point is a pointed hydraulic breaker tool. Unlike a chisel or blunt tool, it drives all the impact force into a single point. The result is fast penetration into hard material.
A Komatsu JMHB660H-1 moil point works well when you need to:
- Break reinforced and mass concrete
- Split boulders and oversize rock
- Dig trenches in hard ground
- Do primary and secondary breaking in quarries
- Carry out general demolition on construction sites
Why Choose Our 86780327 Replacement Moil Point?
Designed to Fit the JMHB660H-1 Breaker
The tool matches the dimensions of OEM part 86780327. The correct diameter and length help it sit properly in the bushings. A good fit supports efficient energy transfer and reduces uneven wear.
Strong Penetration in Hard Materials
The pointed design focuses impact energy. This helps the breaker work through dense rock and thick concrete with fewer blows.
Heavy-Duty Construction
At 324 kg, this is a substantial working tool. It is built for long shifts in demanding applications such as quarrying, mining and large-scale demolition.
Cost-Effective Alternative
As an aftermarket manufacturer, we offer a dependable replacement option that helps you keep your breaker working and control operating costs.
Other Replacement Tools for the Komatsu JMHB660H-1
Besides the moil point, we manufacture aftermarket replacements for all four tool types used on the Komatsu JMHB660H-1 hydraulic breaker. All of them share the same 190 mm diameter and 1,660 mm length, so you can switch tool types to suit the job.
| Tool Type | OEM Reference No. | Diameter | Length | Weight |
|---|---|---|---|---|
| Conical Point | 86780301 | 190 mm / 7.48 in | 1,660 mm / 65.35 in | 336 kg / 741 lb |
| Moil Point | 86780327 | 190 mm / 7.48 in | 1,660 mm / 65.35 in | 324 kg / 714 lb |
| Chisel | 86780285 | 190 mm / 7.48 in | 1,660 mm / 65.35 in | 341 kg / 752 lb |
| Blunt | 86780319 | 190 mm / 7.48 in | 1,660 mm / 65.35 in | 356 kg / 785 lb |
Conical Point – Replacement for 86780301
A conical point concentrates impact energy for fast penetration in hard, abrasive rock. It is a good choice for quarrying and primary rock breaking.
Moil Point – Replacement for 86780327
The moil point is the most versatile tool type. It works well for concrete breaking, general demolition and deep penetration in mixed materials.
Chisel – Replacement for 86780285
The chisel’s flat cutting edge makes it ideal for trenching, cutting and splitting layered or softer rock.
Blunt – Replacement for 86780319
The blunt tool spreads impact energy across a wide surface. It is best for secondary breaking of boulders and oversize rock, where the material needs to shatter rather than be penetrated.
Maintenance Tips for Longer Tool Life
Good habits extend the life of your moil point and of the breaker itself:
- Grease regularly. Apply chisel paste or tool grease to the tool shank at the intervals given in your breaker manual.
- Check bushing wear. Worn bushings cause misalignment and can lead to tool breakage.
- Avoid blank firing. Do not run the breaker unless the tool is in contact with the material.
- Do not use the tool as a lever. Prying with the moil point can bend or crack it.
- Keep the tip sharp. Re-sharpen or replace a blunted tip to keep penetration efficient.
- Warm up in cold weather. Avoid full-power work with a cold tool to reduce the risk of fracture.
Applications
The Komatsu JMHB660H-1 Moil Point replacement tool is used in:
- Quarrying and mining
- Building and bridge demolition
- Road and infrastructure works
- Foundation and trench excavation
- Primary rock breaking
Frequently Asked Questions
What is the OEM reference number for the Komatsu JMHB660H-1 moil point?
The OEM reference number is 86780327.
What are the dimensions of the 86780327 moil point?
It has a diameter of 190 mm (7.48 in) and a length of 1,660 mm (65.35 in), and it weighs 324 kg (714 lb).
Which breaker does this moil point fit?
It is designed as a replacement tool for the Komatsu JMHB660H-1 hydraulic breaker.
Which tool types are available for the Komatsu JMHB660H-1?
We offer aftermarket replacements for the conical point (86780301), moil point (86780327), chisel (86780285) and blunt (86780319).
Are all JMHB660H-1 tools the same size?
Yes. All four tool types have a 190 mm diameter and a 1,660 mm length. Only the tip shape and weight differ.
When should I use a moil point instead of a chisel?
Use a moil point for penetration and for breaking concrete or rock. A chisel is better for trenching and splitting layered material.
Are your tools genuine Komatsu parts?
No. Our tools are aftermarket replacement parts made by our company. They are designed to fit and function as replacements for the referenced OEM parts.
Order Your JMHB660H-1 Replacement Moil Point Today
Need a replacement Komatsu JMHB660H-1 moil point? Contact us with reference number 86780327 for price, stock availability and delivery options. We also supply the conical point (86780301), chisel (86780285) and blunt (86780319). Our team can help you choose the right tool type for your application.
Disclaimer: Komatsu® and all other brand names, model names and part numbers mentioned on this page are registered trademarks of their respective owners. They are used for reference and identification purposes only. Our company is not affiliated with, authorized by, sponsored by or endorsed by Komatsu Ltd. or any other original equipment manufacturer (OEM). The products offered are aftermarket replacement parts manufactured by our company and are not genuine Komatsu parts. They are designed to fit and function as replacements for the referenced original parts. Specifications are provided for reference and may vary. Please confirm compatibility with your equipment before ordering.
