Hydraulic breaker chisels
ASI chisels for breakers on 5 to 60-tonne carrier excavators, in ASI 42CrMo4 and ASI 40Cr. Find your breaker model to see every chisel we make for it, with part codes.
Chisels by breaker brand
More models
- SB-43Also written SB43, SB 43
- HM-360Also written HM360, HM 360
- HM-360 HD+Also written HM360 HD+, HM 360 HD+, HM-360 HD
- HM-380Also written HM380, HM 380
- SB-40Also written SB40, SB 40, Fine-5
- Demo 210Also written Demo210, Demo-210
- Saga 225Also written Saga225, Saga-225, MS-225
- HM-390Also written HM390, HM 390
- MB 1500Also written MB1500, MB-1500
More models are being added. Don't see yours? Send the model, or a photo of the old chisel, on WhatsApp and we'll check.
Which grade? ASI 42CrMo4 or ASI 40Cr
| ASI 42CrMo4 Recommended | ASI 40CrEconomy | |
|---|---|---|
| Steel | SteelCr-Mo alloy steel to 42CrMo4 | SteelCr alloy steel, 40Cr |
| Heat treatment | Heat treatmentHardened, tempered and zone tempered: tip about 55, middle about 50, head about 45 HRC | Heat treatmentHardened and tempered. Zone tempering to be confirmed |
| Traceability | TraceabilityDot-pin serial and heat number | TraceabilitySerial and heat number |
| Best for | Best forHard rock, quarries, long shifts | Best forSofter rock, occasional use, tight budgets |
| Sizes | SizesFull range, for breakers on 5 to 60-tonne carrier excavators | Sizes135 and 140 mm only |
Cost per working hour = price ÷ hours of useful life
If an ASI 42CrMo4 chisel lasts longer than the price difference, it costs less per working hour. Ask us to work it out for your breaker.
Why ASI chisels last
A chisel needs a hard working tip, a tough body and a head that takes the piston's blows without cracking. We harden, temper and then zone temper every ASI 42CrMo4 chisel in our own plant, so each zone gets the hardness its job needs.
- Headabout 45 HRCTakes the piston blow without cracking
- Middleabout 50 HRCTough body that resists bending
- Tipabout 55 HRCHard working end that resists wear
Every chisel is traceable
- Dot-pin serial and model numberMarked on every chisel
- Heat numberTraces the steel back to its mill certificate
- That heat's molybdenum %[placeholder: confirm we can share the heat Mo % from the mill certificate]
We have our own hardness-testing machines in the plant. ASI 40Cr: serial and heat number.
Chisels in the field
We started making chisels to our current standard in October 2026. We will publish working hours from customers' breakers here as they come in. Until then, see what customers report for our through bolts, bushes and pins.
Chisel questions
How do I find the right chisel for my breaker?
Search for your breaker model above, or send us the model, the carrier excavator's tonnage, or a photo of the old chisel on WhatsApp. Our technical team will tell you which chisel fits.
Which grade should I choose, ASI 42CrMo4 or ASI 40Cr?
ASI 42CrMo4 for hard rock, quarries and long shifts. ASI 40Cr for softer rock and occasional use, in 135 and 140 mm only. Compare the two in the grade table on this page, or ask us to work it out for your breaker.
How long will an ASI chisel last?
It depends on the rock, the condition of the breaker and how the operator works it. We started making chisels to our current standard in October 2026, so we don't yet have field hours to publish. We will add them here as customers report them.
What is the minimum order?
It depends on the chisel. Many fast-moving sizes can be ordered in small quantities for a trial. [placeholder: minimum order for chisels, e.g. 1 piece]
Can I place a small trial order first?
Yes. Many first-time customers start with a small trial order.
Do you keep chisels in stock?
We keep fast-moving models in ready stock. Ask us on WhatsApp for the model you need. [placeholder: stock and dispatch time per model, or one general rule]
How can I trace my chisel?
Every ASI 42CrMo4 chisel carries a dot-pin serial number and heat number. Quote the serial number on WhatsApp and we can tell you when it was made and which heat of steel it came from.
Do you sell direct or only through dealers?
We supply dealers, fleet owners and exporters. Where there is no dealer near you, we may supply you direct. [placeholder: Vikrant to confirm whether contractors can buy direct]
How do I get a price?
Tap WhatsApp on the chisel you need, or send an enquiry by form. Tell us the model and quantity. We reply within 24 working hours, faster on WhatsApp.
Can I visit the plant?
Yes. Serious buyers, distributors and export partners are welcome to visit our plant in Saha, Ambala. Tell us when you'd like to come.
Do you export chisels?
Yes. We supply export markets with custom specifications, custom marking and export-grade packing. [placeholder: export packing details]