Bucket teeth and cutting edges are the wear parts that determine how well your bucket actually digs and moves material — and they're often the last thing operators think about until they've worn through to the base metal. This guide covers what these parts do, when to replace them, upgrade options, and where to buy them in Canada.
A new skid steer bucket performs very differently from one that's had 500 hours of work in gravel and hardpan. The cutting edge dulls, bucket teeth wear down or break off, and what was once a sharp, aggressive digging tool becomes a rounded-edge shovel that pushes material rather than penetrating it. The machine works harder, fuel consumption increases, cycle times get longer, and productivity drops.
The good news is that wear parts are designed to be replaceable. The bucket body itself is meant to outlast multiple sets of teeth and cutting edges. Replacing wear parts at the right time — before the underlying steel is damaged — keeps your bucket productive and avoids expensive bucket repairs or replacement.
The cutting edge is the bolt-on steel bar that runs along the bottom front of the bucket. It contacts the ground first, so it absorbs the most wear. When it wears through, the damage transfers to the bucket floor — which is much more expensive to repair.
Standard (mild steel): The base option on most new buckets. Typically around 50mm x 16mm or similar cross-section, mild steel. Works well in soft to moderate soil. Cost-effective to replace. Wears faster than harder alternatives in abrasive material.
Hardox or AR400/AR500 steel: Abrasion-resistant steel that lasts significantly longer in hard, abrasive conditions — gravel, rock, frozen ground, sand. More expensive per piece, but typically worth the cost in Canadian conditions where frozen ground, glacial till, and gravel are common. The extra upfront cost usually pays back in extended service life and fewer replacement intervals.
Serrated or segmented edges: Cutting edges with teeth built into the edge profile. Offer improved penetration in harder soils. Used on specialty buckets for aggressive digging. Not ideal for applications where a clean, smooth bottom is needed (loading sand into hoppers, for example).
Reversible cutting edges: Double-sided edges that can be flipped when one side wears. Effectively doubles service life from a single piece. More common on larger excavator buckets but available for skid steer sizes. Worth considering in high-wear environments.
Check the thickness of the cutting edge at the contact face. Most have a minimum thickness stamped or indicated in the operator documentation — when you're at or near that number, it's time to replace. A practical field check: if the leading edge is visibly rounded rather than presenting a sharp face to the ground, productivity is already suffering. Replace before you're digging with the bucket floor.
In Canadian conditions — frozen ground in winter, abrasive glacial till in spring, rock and gravel at construction sites — cutting edge intervals can be significantly shorter than what manufacturers specify based on average conditions. Operators in northern Alberta or the Canadian Shield should inspect wear parts more frequently than those working in sandy or soft-soil environments.
Not all skid steer buckets run teeth. General purpose buckets and many standard buckets use a smooth cutting edge only. Rock buckets, GP+ buckets used for aggressive digging, and specialty earthmoving buckets use bolt-on teeth that project from the cutting edge to concentrate force on a small point and break up hard material before it enters the bucket.
Skid steer bucket teeth are a two-part system:
Tooth systems follow manufacturer compatibility patterns. Bobcat, John Deere, CAT, and other OEM brands each have their own tooth/adapter standard, but there is also a large aftermarket that produces cross-compatible parts. Brands like Tiger Attachments, Hensley, GET (Ground Engaging Tools), and others supply compatible replacement points for most common adapter systems.
Standard (chisel or tiger): General-purpose point for mixed soil conditions. The baseline for most digging applications.
Penetration (sharp taper): More aggressive penetration angle. Works well in hard, compacted soil and frozen ground — both common in Canadian operations through much of the year.
Rock (blunt taper): Wider, more robust point profile that resists breakage in boulder and rock applications. Less penetration than sharp points but more durable under impact.
Conical (round shank): Used on specialty rock and mining buckets. Less common on standard skid steer applications.
The rule of thumb: replace when the point has worn to roughly half its original profile length, or when you notice reduced penetration requiring more downward pressure. Don't wait until the point is gone — you're then wearing the adapter, which is a more expensive part to replace and requires welding access.
In Canadian winter conditions, working frozen ground accelerates tooth wear significantly. An operation doing heavy winter digging may go through tooth points two to three times faster than summer work in similar soil.
Some operators want to add teeth to a bucket that shipped without them. This is possible through two approaches:
Bolt-on tooth bar: A tooth bar replaces or supplements the cutting edge with a bar that has tooth adapters welded in place. Bolt-on tooth bars are available for most skid steer bucket widths. Installation is straightforward — bolt in place using the existing cutting edge bolt holes. See our tooth bar guide.
Welded adapter installation: For a more permanent upgrade, adapters can be welded directly to an existing cutting edge by a competent welder. This is the approach taken by bucket manufacturers and produces a cleaner result. Requires a weld shop and the right adapter type for your planned tooth points.
Beyond the cutting edge and teeth, buckets experience wear at the corners (side plates or wear plates on the ends of the cutting edge) and along the sides. Side wear plates are bolt-on pieces that protect the corners from the abrasion that occurs when the bucket corners dig in. Replace them when worn through rather than letting the corner of the bucket body itself wear.
Some heavy-duty buckets include wear runners — longitudinal steel bars welded to the bottom of the bucket on the outside. These act as sacrificial wear surfaces that can be replaced by a welder when worn, extending the life of the bucket floor. Operators running high-abrasion material on rocky ground should consider buckets with wear runners or have them added by a fabrication shop.
Wear parts are available through several channels in Canada:
Your machine dealer stocks or can order OEM wear parts — the most expensive option, but guaranteed compatibility. For warranty-period equipment where you need to maintain OEM specifications, this may be required.
Companies specializing in ground-engaging tools supply compatible parts for most common tooth systems at competitive prices. Canadian distributors serving this market include industrial supply companies, mining supply companies, and specialty wear parts dealers. Search for "ground engaging tools Canada" or "bucket teeth Canada" to find current suppliers in your region.
A growing number of wear parts suppliers sell directly online and ship to Canada. For tooth points and cutting edges — parts where geometry and fit are straightforward to verify — online purchasing is lower risk than for complex hydraulic components. Confirm the adapter system compatibility before ordering.
For cutting edges made from AR plate, a local steel fabricator can cut and drill custom cutting edges to your bucket's specifications. This is often the most economical option for non-standard bucket widths or when you want to specify a particular steel grade. AR400 and AR500 plate is stocked by most steel service centres in Canada.
Canadian operators working in conditions common across the country should consider upgrading from standard mild steel cutting edges:
| Wear Part | Check Frequency | Replace When |
|---|---|---|
| Cutting edge | Monthly in normal use; weekly in abrasive conditions | At or near minimum thickness; before damage to bucket floor occurs |
| Tooth points | Daily visual check; detailed weekly | Worn to ~50% original profile, or when performance drops |
| Tooth adapters | Each time points are replaced | When point-to-adapter fit is loose, or adapter is worn below shoulder |
| Side wear plates | Monthly | Before corner of bucket body is exposed |
| Wear runners (if equipped) | Quarterly | When worn flush with bucket floor |