Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
NICHOLSON Machinists File: Round, Single-Cut, Safe Edge Cut, Second Cut, 12 in Lg without Tang - Single-Cut Round Files
NICHOLSONSingle-Cut Round Files

NICHOLSON Machinists File: Round, Single-Cut, Safe Edge Cut, Second Cut, 12 in Lg without Tang

The NICHOLSON 12166 is a 12-inch round machinist's file with a single-cut, safe edge cut, second cut pattern. It features a 5/16-inch thickness and tapers towards the point, with a natural finish. 3G Electric…

SKU 3G-OTH-728949

Brand
NICHOLSON
Item
Machinists File: Round, Single-Cut, Safe Edge Cut, Second Cut, 12 in Lg without Tang
Category
Single-Cut Round Files
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

NICHOLSON
Manufacturer Part Number
12166
Type
Single-Cut, Safe Edge Cut, Second Cut
Thick
5/16 in
Lg Without Tang
12 in
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

NICHOLSON Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The NICHOLSON 12166 is a 12-inch round machinist's file with a single-cut, safe edge cut, second cut pattern. It features a 5/16-inch thickness and tapers towards the point, with a natural finish. 3G Electric interprets your demand for this genuine industrial file and delivers it with specialist sourcing support across 14 departments.

Frequently Asked Questions

What is the NICHOLSON 12166 round file used for?

The NICHOLSON 12166 is a 12-inch round machinist's file designed for shaping and deburring metal, particularly in dies, molds, and curved surfaces. Its single-cut, safe edge, and taper-toward-point design allows precise material removal without damaging adjacent surfaces. 3G Electric supplies this genuine file with specialist sourcing support across 14 industrial departments.

What are the specifications of the NICHOLSON 12166 file?

The NICHOLSON 12166 is a 12-inch round file without tang, 5/16-inch thick, with a single-cut, safe edge cut, second cut pattern. It tapers toward the point and has a natural finish. The manufacturer part number is 12166. 3G Electric sources this genuine NICHOLSON file for worldwide delivery.

Where to buy the NICHOLSON 12166 file worldwide?

3G Electric supplies the genuine NICHOLSON 12166 round file to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. As a global industrial solutions provider, we interpret your demand and source this file with specialist support across 14 departments. Contact us for availability and lead time.

How to select the right cut for a NICHOLSON round file?

For general metal removal on steel or iron, a second-cut file like the NICHOLSON 12166 offers a balance of stock removal and finish. Single-cut files provide a smooth surface, while safe edges prevent damage to shoulders. Match the file length (12 inches) to the workpiece size. 3G Electric can advise on file selection for your application.

Used in

Common applications for NICHOLSON
Industrial steam condensate removal — Nicholson FTN series C-pattern steam traps in process heating systems
Commercial building radiator control — Nicholson N25-FO radiator valves for hot water and steam heating
High-pressure steam line drainage — Nicholson NFT 250 series in-line traps for 250 psi applications
Space-constrained piping layouts — Nicholson H-pattern steam traps for tight installations in manufacturing plants
Corrosive environment steam trapping — Nicholson stainless steel float traps for chemical processing facilities

NICHOLSON Products

3G Electric supplies NICHOLSON single-cut round files. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from NICHOLSON

View all NICHOLSON parts →
Machinists File: Round, Single-Cut, Safe Edge Cut, Smooth Cut, 4 in Lg without Tang, 1/8 in Thick (MPN 11592NNN). Key specifications — attr146821: Taper Towards Point; attr447110: Natural; attr146810: NICHOLSON.
NICHOLSON
Machinists File: Round, Single-Cut, Safe Edge Cut, Smooth Cut, 4 in Lg without Tang, 1/8 in Thick (MPN 11592NNN). Key specifications — attr146821: Taper Towards Point; attr447110: Natural; attr146810: NICHOLSON.
Machinists File: Round, Single-Cut, Safe Edge Cut, Smooth Cut, 10 in Lg without Tang, 11/32 in Thick (MPN 12084). Key specifications — attr146821: Tapered Slightly Towards Point; attr447110: Natural; attr146810: NICHOLSON.
NICHOLSON
Machinists File: Round, Single-Cut, Safe Edge Cut, Smooth Cut, 10 in Lg without Tang, 11/32 in Thick (MPN 12084). Key specifications — attr146821: Tapered Slightly Towards Point; attr447110: Natural; attr146810: NICHOLSON.
Machinists File: Round, Single-Cut, Safe Edge Cut, Bastard Cut, 12 in Lg without Tang, Natural (MPN 12131). Key specifications — attr146821: Tapered Slightly Towards Point; attr447110: Natural; attr146810: NICHOLSON.
NICHOLSON
Machinists File: Round, Single-Cut, Safe Edge Cut, Bastard Cut, 12 in Lg without Tang, Natural (MPN 12131). Key specifications — attr146821: Tapered Slightly Towards Point; attr447110: Natural; attr146810: NICHOLSON.
Machinists File: Round, Single-Cut, Safe Edge Cut, Smooth Cut, 6 in Lg without Tang, 7/32 in Thick (MPN 11781). Key specifications — attr146821: Tapered Slightly Towards Point; attr447110: Natural; attr146810: NICHOLSON.
NICHOLSON
Machinists File: Round, Single-Cut, Safe Edge Cut, Smooth Cut, 6 in Lg without Tang, 7/32 in Thick (MPN 11781). Key specifications — attr146821: Tapered Slightly Towards Point; attr447110: Natural; attr146810: NICHOLSON.
Machinists File: Round, Single-Cut, Safe Edge Cut, Second Cut, 10 in Lg without Tang, 3/16 in Thick (MPN 12051). Key specifications — attr146821: Tapered Slightly Towards Point; attr447110: Natural; attr146810: NICHOLSON.
NICHOLSON
Machinists File: Round, Single-Cut, Safe Edge Cut, Second Cut, 10 in Lg without Tang, 3/16 in Thick (MPN 12051). Key specifications — attr146821: Tapered Slightly Towards Point; attr447110: Natural; attr146810: NICHOLSON.
Machinists File: Round, Single-Cut, Safe Edge Cut, Bastard Cut, 4 in Lg without Tang, 1/8 in Thick (MPN 11526NN). Key specifications — attr146821: Tapered Slightly Towards Point; attr447110: Natural; attr146810: NICHOLSON.
NICHOLSON
Machinists File: Round, Single-Cut, Safe Edge Cut, Bastard Cut, 4 in Lg without Tang, 1/8 in Thick (MPN 11526NN). Key specifications — attr146821: Tapered Slightly Towards Point; attr447110: Natural; attr146810: NICHOLSON.
Machinists File: Round, Single-Cut, Safe Edge Cut, Smooth Cut, 8 in Lg without Tang, 9/32 in Thick (MPN 11969). Key specifications — attr146821: Tapered Slightly Towards Point; attr447110: Natural; attr146810: NICHOLSON.
NICHOLSON
Machinists File: Round, Single-Cut, Safe Edge Cut, Smooth Cut, 8 in Lg without Tang, 9/32 in Thick (MPN 11969). Key specifications — attr146821: Tapered Slightly Towards Point; attr447110: Natural; attr146810: NICHOLSON.
Machinists File: Round, Single-Cut, Safe Edge Cut, Second Cut, 8 in Lg without Tang, 9/32 in Thick (MPN 11936). Key specifications — attr146821: Tapered Slightly Towards Point; attr447110: Natural; attr146810: NICHOLSON.
NICHOLSON
Machinists File: Round, Single-Cut, Safe Edge Cut, Second Cut, 8 in Lg without Tang, 9/32 in Thick (MPN 11936). Key specifications — attr146821: Tapered Slightly Towards Point; attr447110: Natural; attr146810: NICHOLSON.