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Size: 9-12mm ≈ 5/16" - 1/2"

9-12mm ≈ 5/16" - 1/2"
12-16mm ≈ 1/2" - 5/8"
16-22mm ≈ 5/8" - 7/8"
22-27mm ≈ 7/8" - 1-1/16"
🧰 The Master Set (All 4 Sizes)

Description
Professional Grade Tool

Safely Split Frozen Nuts, Preserve the Bolt Thread

The heavy-duty manual nut splitter designed for mechanics. remove rusted, seized, or corroded nuts in minutes without damaging the underlying bolt threads.

Damage-Free Removal

Forget torches or grinding wheels that ruin fasteners. Our precision-engineered chisel head is designed to focus splitting force solely on the nut shell. It cracks the metal casing while stopping short of the inner bolt threads, saving you from costly thread repairs.

🛡️ Thread Safe Design ⚙️ Precision Chisel

Industrial Strength Build

Built for the toughest jobs. The body and cutter are forged from 40CR alloy steel and processed with high-frequency quenching. The cutter head reaches HRC52-55 hardness, ensuring it stays sharp and resists deformation even against stubborn, heavily corroded nuts.

🔨 40CR Alloy Steel 💎 HRC52-55 Hardness ⛓️ Anti-Rust Finish

Simple Mechanical Operation

Just align the ring over the target nut and use a standard wrench (not included) to turn the rear hex bolt. The mechanical advantage generates immense force to split the nut open cleanly.

🔧 Operated ⏱️ Quick Setup

Technical Specifications

Choose the correct model based on the nut size range you need to handle.

Model No. Length Applicable Scope (Nut Size) Bolt Diameter Weight
1 80mm 9-12mm 12mm 95g (0.21 lbs)
2 102mm 12-16mm 14mm 173g (0.38 lbs)
3 130mm 16-22mm 18mm 437g (0.96 lbs)
4 150mm 22-27mm 21mm 658g (1.45 lbs)

Frequently Asked Questions

Q: Will this damage the bolt thread underneath the nut?
A: No. It is specifically designed to split the nut shell without cutting into the bolt threads, provided you select the correct size tool for the job.
Q: How do I know which size fits my project?
A: Please measure the distance across the flats of the nuts you intend to remove. Refer to the "Applicable Scope" column in the specifications table to select the matching model.