DHA DHA129 Ratchet Brake Caliper Piston Spreader Tool

The DHA DHA129 is a ratcheting brake caliper piston press and spreader tool for pushing brake pistons back during brake-pad service. Its listing describes two groups of pushboards and a 360-degree swing, with claimed use on single, twin and four-piston calipers.

At a glance

Ratcheting action and a claimed 360-degree swing are intended to help work around restricted access.
The listing says two groups of pushboards are supplied, with magnetic attachment for add-on plates.
Described for pushing back pistons during brake-pad replacement and caliper service.

Price

£13.59Save 20%

Reference price: ~~£16.99~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

Two pushboard groups are listed for use across several caliper piston arrangements.
A ratcheting mechanism with a claimed 360-degree swing may help when handle movement is restricted.

Technical specifications

7 specifications

Identity
Brand	DHA
Model	DHA129

Dimensions and weight
Dimensions listed	28 x 5.8 x 6.6 cm; 1.14 kg
Weight listed	1.14 kg

Listed operating range and pushboard sizes
Range in feature description	1.6’’ to 2.7’’.
Telescopic range, retracted to extended	fully retracted: 1.88 inches, fully extended: 3.03 inches.
Pushboard sizes	7.01 x 2.36 inches and 4.53 x 2.17 inches

What to know before buying

Listing details to confirm

The listing gives inconsistent working ranges: 1.6’’ to 2.7’’ in one feature and fully retracted: 1.88 inches, fully extended: 3.03 inches elsewhere. Confirm the usable range and fit against your caliper before buying. It also describes the tool for single, twin and quad piston calipers, while another claim refers to some sextuplet-piston calipers, so compatibility with a particular caliper is unconfirmed.

Who is it for?

A good fit for

DIY mechanics and workshops looking for a ratcheting tool to push brake caliper pistons back during pad replacement.
Buyers whose calipers match the listed pushboard sizes and piston arrangements, after checking the tool's fit.

Less suited to

Anyone needing confirmed compatibility with a specific vehicle or caliper without checking dimensions first.
Buyers who require a clearly stated, internally consistent operating range.

DHA DHA129 Ratchet Brake Caliper Piston Spreader Tool · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 84 ratings

5 stars65%65%
4 stars23%23%
3 stars3%3%
2 stars5%5%
1 star4%4%

Aggregate ratings lean positive, with most ratings in the four- or five-star categories, but a smaller share are one- or two-star. Without customer-comment evidence, the reasons for either reaction are unknown. For buyers considering this tool, the listing's conflicting operating-range claims make fit checks particularly important.

Frequently asked questions

What is the DHA DHA129 intended to do?

The listing describes it as a ratcheting press and spreader for pushing brake caliper pistons back during brake-pad replacement and caliper service.

Which calipers is it listed for?

The listing mentions single, twin and four-piston calipers, and elsewhere some sextuplet-piston calipers. Compatibility with a specific caliper is not confirmed, so check fit before use.

What is the tool's working range?

The listing states 1.6’’ to 2.7’’ in one feature and gives a telescopic range of fully retracted: 1.88 inches, fully extended: 3.03 inches elsewhere. These figures conflict, so confirm the range before buying.