TOKU Clay Diggers & Pneumatic Trench Diggers
Three air diggers for packed soil and hard clay around forms, footers and utility runs — the tools that get through hardpan without bringing in an excavator or risking a strike on existing utilities.
The short version
Loosening soil around forms and near existing utilities? The light CD-20 (22 lb, 38 CFM) has a fast chopping action. Digging compacted clay and hardpan? The CD-30. Working a trench line all day? The TRC-30 gives CD-30 power in a 29 in. T-handle so the operator stands upright. Pair with a backfill tamper to close the trench. See all clay and trench diggers. Call 1-888-883-5144.
Clay & Trench Diggers
D-Handle & T-Handle Diggers
Three tools for packed soil and hard clay around forms, footers, and utility runs. The CD-30 and CD-20 are D-handled for maneuverability in a compact package; the TRC-30 offers the comfort and control of a T-handle with the same power and performance as the CD-30.
Shop the Three Diggers
Tamco/Toku TRC-30 T-Handle Trench Digger
CD-30 power in a 29 in. T-handle body. The taller frame and two-hand grip let an operator work standing upright along a trench line all day instead of stooping over a D-handle — the reason most pipeline and utility crews specify this one.
36 lb · 29 in. OAL · 1,550 BPM · 49 CFM · 3-11/32 in. stroke
Tamco/Toku CD-20 Clay Digger
The light digger — 22 lb and the fastest of the three at 2,000 BPM on only 38 CFM. Its shorter 2-3/8 in. stroke gives a chopping action suited to loosening soil around forms and existing utilities rather than trenching through hardpan.
22 lb · 20 in. OAL · 2,000 BPM · 38 CFM · 2-3/8 in. stroke
Tamco/Toku CD-30 Clay Digger
The workhorse: 30 lb, 1,550 BPM, and a 3-11/32 in. stroke that drives through compacted clay and hardpan. Same power as the T-handle TRC-30 in a shorter, more maneuverable D-handle body, and offered in both shank sizes.
30 lb · 22 in. OAL · 1,550 BPM · 49 CFM · 3-11/32 in. stroke
Specifications Compared
Every Toku clay digger Crowder Supply stocks, side by side.
| Model | Handle | Piston Stroke | Impact Rate | Tool Weight | Overall Length | Air @ 90 PSI | Shank |
|---|---|---|---|---|---|---|---|
| CD-20 | D-Handle | 2-3/8 in. | 2,000 BPM | 22 lb | 20 in. | 38 CFM | 7/8 x 3-1/4 |
| CD-30 | D-Handle | 3-11/32 in. | 1,550 BPM | 30 lb | 22 in. | 49 CFM | 7/8 x 3-1/4, 1 x 4-1/4 |
| TRC-30 | T-Handle | 3-11/32 in. | 1,550 BPM | 36 lb | 29 in. | 49 CFM | 7/8 x 3-1/4, 1 x 4-1/4 |
Swipe the table sideways to see every column.
All three are rated to 90 PSI maximum. The CD-30 and TRC-30 share the same power and stroke — the only real difference is the handle and working height.
Steel, Air & Wear Parts
The consumables that keep these tools running
Frequently Asked Questions
What is a clay digger?
A clay digger is a pneumatic tool built for excavating compacted soil, clay and hardpan rather than breaking concrete. It uses a spade or clay-digger point instead of a moil point, and it is the standard way to dig around forms, footers, poles and existing utilities where a machine would be too destructive or cannot fit.
D-handle or T-handle?
Working height. The D-handled CD-20 and CD-30 are shorter and more maneuverable for spot work and digging in close. The T-handled TRC-30 is 29 in. tall with a two-hand grip, so an operator can work a trench line standing upright instead of stooping — which is why most pipeline and utility crews specify it.
CD-20 or CD-30?
The CD-20 is 22 lb with a shorter 2-3/8 in. stroke at 2,000 BPM — a fast chopping action on only 38 CFM, good for loosening soil around forms and near buried utilities. The CD-30 is 30 lb with a 3-11/32 in. stroke at 1,550 BPM, which drives through packed clay and hardpan the CD-20 will struggle with.
What steel fits a Toku clay digger?
Clay spades and digger points in 7/8 x 3-1/4 or 1 x 4-1/4 shank, depending on model — the same family as paving breaker steel. Shop paving breaker and clay digger points and chisels.
Is Tamco the same as Toku?
Yes — TOKU of Japan manufactures and TAMCO Tools distributes in the US, so these are listed as “Tamco/Toku.” The catalog calls these the TCD-20, TCD-30 and TRC-30. See the Toku brand page.
Need Help Sizing a Toku Clay Digger?
Our product team stocks the full Tamco/Toku line and ships same day. Call for sizing help, a quote, or bulk pricing.