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MiniTrencher SB431 SiBore Drill Kit – Heavy‑Duty Horizontal Boring Drill

Save $499.90
Original Price $4,999.00
Current Price $4,499.10
Model : SB431 SiBore Drill Kit In Stock

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Description

Tackle trenchless installs with the SiBore™ SB431, a compact horizontal boring system featuring a Honda® GX35 engine option, enclosed spur‑gear transmission, and a full accessory kit for 1", 2", and 4" bores. Built for irrigation, plumbing, electrical, fiber, and landscape pros who need fast, clean, waterless boring under sidewalks and hardscapes.


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SB431 – Gas‑Powered Heavy‑Duty Boring Drill

Install conduit and utilities under sidewalks and hardscapes without open trenching. The SB431 uses a Honda GX35 engine and an enclosed spur‑gear transmission to deliver controlled, waterless boring for 1", 2", and 4" holes.

Its compact size makes it suitable for service vehicles and tight‑access job sites. The included augers, boring heads, and extensions provide flexibility for a range of underground installs.

This system is built for irrigation, plumbing, electrical, and landscape professionals who need a dependable trenchless boring tool for everyday work.

MiniTrencher Warranty
MiniTrencher products include a manufacturer warranty that requires registration after purchase. Warranty coverage applies to defects in materials or workmanship when the product is used according to the operator manual. Engines are covered under the engine manufacturer’s warranty. Wear parts such as chains, bars, and consumables are not covered.

Customers must complete the MiniTrencher warranty registration form after purchase to activate coverage.

Product Extended Warranty Plans

Extended warranty plans may be available for select products. Contact us to confirm eligibility and coverage details.

  • Honda® GX35 4‑stroke engine option delivering 1.6 HP with multi‑position operation

  • Enclosed, grease‑lubricated spur‑gear transmission for long service life and smooth power delivery

  • All‑in‑one boring system combining the capabilities of both SB216 and SB215 micro‑bore models

  • Waterless boring method eliminates mud cleanup and keeps job sites clean

  • Compact, lightweight design that fits in the trunk of a car for easy transport

  • Ideal for trenchless installs including irrigation, plumbing, electrical, fiber, and cable work

  • Powers through tough clay soils for reliable sidewalk and hardscape crossings

  • Pairs seamlessly with GeoRipper® handheld trenchers for a complete underground installation workflow

Included with your Sibore Drill

  • SiBore™ SB431 Drill

  • Honda® GX35 4‑stroke engine 

  • (1) MS‑10 motor stand

  • (6) 36" boring rods

  • (1) swivel cable puller

  • (2) boring heads

  • (2) augers

  • (3) 32" extensions

  • Weather‑resistant nylon accessory case

  • Owner’s manual