🇺🇸 Free shipping on USA orders over $500 $50 surcharge to AK / HI 3 year warranty, 3× the industry standard Honda engine warranty 1–2 years Made in the USA · ships from Cheney, Washington
REDIboss78 post driver with 3 1/8” ID guide tube
REDI Series · Honda GX35

REDIboss78 post driver with 3 1/8” ID guide tube

26JOULES
1740BPM
35LBS

$2,228.00

Gas powered post driver with a 3 1/8" guide tube, for items up to 3" OD. 26 joules at 1740 BPM, a Honda GX35 engine and 35 lbs. Ships with a 2 1/4" reducer sleeve for posts up to 2" when bought at full retail price.

In stock · ships from Cheney, Washington

Want more hitting power? The MEGAmulti hits 30 joules to this driver's 26. Compare the drivers

3 year warranty No registration required
Free USA shipping On orders over $500
Made in the USA Built in Cheney, WA
509-235-2780 A person answers
SKU: REDIboss78 Category:
Before you decide

Step up to the MEGAmulti

Over the REDIboss78, the MEGAmulti gives you 15% more hitting power (30 joules to 26), a 25% bigger Honda engine and the exclusive multi adapter for Postmaster types and some square profiles, with no anvil swap. Read the full comparison

Best overall

MEGAmulti

$3,499.00
Hitting power30 joules
Impacts per minute1780 BPM
EngineHonda GX50, 2 HP
TakesUp to 3" OD, all Postmaster types and some square profiles, no anvil swap
Built forLarger piston, heavier internals, longer duty cycle
Weight39 lbs
Warranty3 years + Honda engine warranty
See the MEGAmulti

REDIboss78

$2,228.00 THIS PAGE
Hitting power26 joules
Impacts per minute1740 BPM
EngineHonda GX35, 1.6 HP
TakesItems up to 3" OD, the widest sleeve and adapter range
Built forThe worldwide best seller
Weight35 lbs
Warranty3 years + Honda engine warranty

REDIclassic52

$1,838.00
Hitting power26 joules
Impacts per minute1720 BPM
EngineHonda GX35, 1.6 HP
TakesItems under 2"
Built forLightest in the line
Weight32 lbs
Warranty3 years + Honda engine warranty

Not ready to order? Get the MEGAmulti spec sheet and price by email.

Description

The REDIboss78 is a gas powered post driver with a 3 1/8″ guide tube. It drives items up to 3″ OD, and with a reducer sleeve, smaller posts down to T-posts, rods and rebar. It takes the widest range of sleeves, caps and adapters in the RediDriver line. A Honda four stroke runs it: no hose, no compressor, no cord.

Specifications

Hitting power 26 joules
Impact rate 1740 BPM
Weight 35 lbs
Guide tube 3 1/8"
Engine Honda GX35, 35.8cc, 1.6 HP, recoil, inclinable
Fuel and oil Straight unleaded, no mixing. 10W-30 engine oil. EP 0 low viscosity grease for the driver.
Build German steel, engineered polymer, viton o-rings. Spring isolated handles.
Noise Over 100 dB. Hearing protection required.
Warranty 3 years on driver components, plus Honda’s own 1 to 2 year engine warranty.

What it drives

  • Items up to 3″ OD in the standard 3 1/8″ guide tube. A reducer sleeve is required under 2″.
  • T-posts with the 1 3/4" reducer sleeve (REDIslv78-1.3/4alum).
  • Rods and rebar with the 13/16" reducer sleeve (REDIslvrod78poly).
  • Larger posts with the Magnum guide tube with 4 1/4" ID (REDImagnum105) and the REDIcap105 driving cap for steel posts.
  • Postmaster, larger U-channel and square metal posts with the REDImultiadapter; Carsonite type guide posts with the REDIcarsoniteadapter.

In the box

The REDIboss78 with its 3 1/8″ guide tube, and the 2 1/4" reducer sleeve (REDIslvboss78-2.1/4) for posts up to 2″, included when the driver is bought at full retail price. The same sleeve is sold on its own as a spare.

Who it is for

Fence crews, ranches and contractors driving T-posts through 3″ round posts with one machine, who want the most sleeves and adapters to choose from. For the hardest hit and Postmaster or square profiles with no adapter swap, look at the MEGAmulti.

Warranty, shipping and returns

Three years on the driver components, three times the industry standard, with no registration. The Honda engine carries Honda’s own 1 or 2 year warranty, claimed at an authorized Honda service center. Made in the USA and shipped from Cheney, Washington. Free shipping on USA orders over $500, with a $50 surcharge to Alaska and Hawaii. Returns within two weeks for a refund; shipping costs are excluded.

Check any part against this driver on the compatibility matrix, or compare all three drivers on the spec sheet.

Additional information

Weight 35 lbs
Complete your setup

Fits the REDIboss78

40 accessories and parts fit this driver. Every card says what it fits and what it does not.

Full compatibility matrix
Find your driver

What are you driving?

Pick the post. We'll name the driver and the sleeve you actually need, so nothing shows up missing a part.

The post

RediDriver is a gas powered post driver. It runs on a Honda four stroke engine, needs no hose and no compressor, and drives posts from ground level. One person carries it from post to post.

No. A RediDriver is fully self-contained. There is no hose, no compressor and no power cord, which is the entire reason the tool exists.

The MEGAmulti. It hits 30 joules at 1780 impacts per minute from a 2 HP Honda GX50 engine. The REDIboss78 and REDIclassic52 hit 26 joules from a 1.6 HP Honda GX35. The MEGAmulti also has a larger piston, heavier internals and a longer duty cycle.

Wooden posts, steel posts, T-posts, U-channel, sign posts, guide posts, fiberglass rods, grounding rods, rebar stakes and tent stakes. Post size picks the model: the REDIclassic52 handles items under 2 inch, the REDIboss78 and MEGAmulti handle up to 3 inch OD, and the REDImagnum105 guide tube takes the REDIboss78 to 4 inch.

Yes. The MEGAmulti's exclusive multi adapter guide tube takes all Postmaster types, 3 inch round and some square profiles without changing an anvil. It is the only RediDriver built for Postmaster posts.

26 joules on the REDIclassic52 and REDIboss78, and 30 joules on the MEGAmulti. Impact rate is 1720 BPM, 1740 BPM and 1780 BPM respectively.

The MEGAmulti hits harder (30 joules to 26), has the bigger engine (Honda GX50, 2 HP, to the GX35, 1.6 HP) and takes Postmaster types and some square profiles on its multi adapter. The REDIboss78 is 4 lbs lighter (35 lbs to 39) and takes the widest range of sleeves and adapters, including T-posts with the T-post sleeve. Both carry the same 3 year warranty.

Buy for post diameter. Under 2 inch: REDIclassic52. Up to 3 inch with the widest adapter range: REDIboss78. Postmaster types, square profiles and the longest duty cycle: MEGAmulti. Commercial and DOT crews driving U-channel and guide posts: the Commercial / DOT package.

If you drive 3 inch round posts, Postmaster or square posts, or a lot of posts in a day, yes: it hits about 15% harder than the REDIboss78 and is built for a longer duty cycle. For T-posts and posts under 2 inch, the REDIboss78 or REDIclassic52 does the job for less.

Only if the post is narrower than the guide tube. A sleeve keeps the post centred so it drives straight. Rods and rebar always need one, a 13/16 inch sleeve, on every model.

No. The MEGAmultiguidetube, MEGAcrankhousing and MEGAcylinderliner are exclusive to the MEGAmulti and are not compatible with any other model. Going the other way, the four REDIboss78 reducer sleeves (1 3/4", 13/16", 2 1/2" and 2 1/4") also fit the MEGAmulti. For every other part, the compatibility matrix shows exactly which drivers it fits.

No. REDIboss78 sleeves are cut for the 3 1/8 inch guide tube. The REDIclassic52 has a 2 inch guide tube and takes its own sleeves, such as the REDIslvrod52poly for rods rather than the REDIslvrod78poly.

Straight unleaded gas, no mixing. Engine oil is 10W-30 and driver lubrication is EP 0 low viscosity grease. Use only EP 0, do not substitute.

Clean it after each use to remove dirt and debris, and lubricate regularly. A full service is recommended annually, especially with frequent use.

Three years on the post driver components, the longest in the industry, plus Honda's own 1 or 2 year warranty on the engine.

Over 100 dB. Hearing protection is required. Handles are spring isolated to dampen vibration.

RediDriver drivers are made in the USA and ship from Cheney, Washington. Shipping is free on USA orders over $500, with a $50 surcharge to Alaska and Hawaii.

Yes. A RediDriver can be returned within two weeks for a refund. Shipping costs are excluded.

REDIboss78 post driver with 3 1/8” ID guide tube $2,228.00
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