stedi

stedi MS-21 Collet Hobby Knife

Manual tool

Semi-closed-collet hobby knife

For customers who value a defined collet arrangement and anti-roll tail for model-detail cutting.

Blade retention: Semi-closed tip collet
Bench feature: Hexagonal anti-roll tail
Blade type: Replaceable, non-retractable knife system

$11.99Nov 6, 26, 05:49 PM · New York

Price info

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PACKAGE ROLEManual tool

WORKING TASKModel detail cutting

Read all specifications & parts ↓

DESCRIPTION

Compare collet control and the anti-roll tail

The MS-21 puts the choice on blade retention and how the handle rests on the bench. A semi-closed tip collet holds the blade, and the hexagonal tail is intended to stop the knife rolling. The seller describes a non-retractable model knife for plastic, PLA, resin parts and wood.

Twenty replaceable blades are described, with carbon steel and a carbon-black coating named for the edges. A supply of replacement edges keeps the same handle in service. The listing does not identify a universal replacement-blade standard, so compare the Army Painter’s explicitly named #11 spare format if later blade sourcing is important.

The exact body alloy needs confirmation: the detailed text says aluminium alloy, while the handle specification says alloy steel. The useful established features are the metal-body concept, semi-closed collet and anti-roll tail; do not choose it specifically for aluminium weight or steel construction until that discrepancy is resolved.

MODEL DETAILS

Specifications & included parts

Details for stedi MS-21 Collet Hobby Knife
Detail	Product details
Blade retention	Semi-closed tip collet
Bench feature	Hexagonal anti-roll tail
Blade type	Replaceable, non-retractable knife system
Blade material	Carbon steel with carbon-black coating described
Spare edges	20 replaceable blades described; installed/loose allocation not itemized
Target use	Model plastic, PLA, resin parts and wood
Model	MS-21

Check the selected size, working profile and supplied parts on Amazon before ordering.

Where this model is useful

Semi-closed collet gives a concrete retention-design comparison.
Hexagonal tail addresses rolling on the bench.

Trade-offs to check

Aluminium-alloy body description conflicts with alloy-steel handle entry; exact body/handle alloy is not promised.
Replacement standard and installed-versus-loose blade allocation are not established.

What to check before choosing

Future blades

Confirm the actual replacement interface before ordering another blade brand.

Your questions about this product

What distinguishes this from a basic scalpel knife?

The seller specifically describes a semi-closed collet and hexagonal anti-roll tail. Compare those handling features with the Army Painter’s slim rubber-coated #11 knife.

Can I choose it specifically for an aluminium handle?

The body text says aluminium alloy, but the handle entry says alloy steel. Confirm the exact construction if the alloy affects your choice.

What needs checking before buying replacement blades?

A universal blade standard is not named. Match the holder’s actual blade interface rather than assuming every #11 or other craft blade fits.