We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

YANKEE Taper Pin Reamer: For #4 Pin, 0.1875 in x 0.2604 in Dia - Spiral-Flute Taper Pin Reamers
YANKEESpiral-Flute Taper Pin Reamers

YANKEE Taper Pin Reamer: For #4 Pin, 0.1875 in x 0.2604 in Dia

YANKEE Spiral-Flute Taper Pin Reamers.

SKU 3G-OTH-203295

Also listed as: 4914 · 491 4

Brand
YANKEE
Item
Taper Pin Reamer: For #4 Pin, 0.1875 in x 0.2604 in Dia
Category
Spiral-Flute Taper Pin Reamers
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

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

YANKEE
Manufacturer Part Number
491-4

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

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

Product Description

YANKEE Spiral-Flute Taper Pin Reamers.

Frequently Asked Questions

What is a YANKEE Taper Pin Reamer used for?

A YANKEE Taper Pin Reamer is used to precisely enlarge and finish tapered holes for #4 taper pins in metal assemblies. It is commonly applied in machine tool maintenance, die repair, and industrial equipment alignment where a tight, removable pin fit is required.

What are the specifications of the YANKEE 491-4 Taper Pin Reamer?

The YANKEE 491-4 Taper Pin Reamer is designed for #4 taper pins with a small-end diameter of 0.1875 in and a large-end diameter of 0.2604 in. It features a spiral flute geometry for smooth cutting and chip evacuation. The manufacturer part number is 491-4.

Where to buy YANKEE Taper Pin Reamers worldwide?

YANKEE Taper Pin Reamers are available to order worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the YANKEE 491-4.

How to select the correct YANKEE taper pin reamer size?

To select the correct YANKEE taper pin reamer, match the reamer's pin number (e.g., #4) to the taper pin size used in your assembly. Verify the small-end and large-end diameters against the hole dimensions. For the 491-4, the taper is 0.1875 in to 0.2604 in. Always use a spiral-flute reamer for through-hole applications.

Used in

Common applications for YANKEE
General machining — YANKEE straight-flute chucking reamers for finishing holes in steel and aluminum parts.
Tool and die making — YANKEE spiral-flute hand reamers for precise sizing of die cavities and bushings.
Maintenance repair — YANKEE counterbores with built-in pilots for creating recesses for screw heads in equipment housings.
Automotive manufacturing — YANKEE chucking reamers with MT1 shanks for reaming engine block bolt holes.
Aerospace component production — YANKEE left-hand spiral-flute reamers for finishing holes in titanium alloys.
Metal fabrication — YANKEE straight-flute reamers for enlarging pilot holes in structural steel assemblies.

YANKEE Products

3G Electric supplies YANKEE spiral-flute taper pin reamers. 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

Compatible alternatives & equivalents

Cross-referenced by specification & description
YANKEE Taper Pin Reamer: For #4 Pin, 0.2071 in x 0.2604 in Dia, Helical Flute (MPN 488-4)
YANKEE
YANKEE Taper Pin Reamer: For #4 Pin, 0.2071 in x 0.2604 in Dia, Helical Flute (MPN 488-4)
YANKEE Taper Pin Reamer: For #4/0 Pin, 0.0869 in x 0.1142 in Dia, Helical Flute (MPN 488-4/0)
YANKEE
YANKEE Taper Pin Reamer: For #4/0 Pin, 0.0869 in x 0.1142 in Dia, Helical Flute (MPN 488-4/0)
YANKEE Taper Pin Reamer: For #4 Pin, 0.2071 in x 0.2604 in Dia, Straight Flute (MPN 487-4)
YANKEE
YANKEE Taper Pin Reamer: For #4 Pin, 0.2071 in x 0.2604 in Dia, Straight Flute (MPN 487-4)
YANKEE Taper Pin Reamer: For #4/0 Pin, 0.0869 in x 0.1142 in Dia, Straight Flute (MPN 487-4/0)
YANKEE
YANKEE Taper Pin Reamer: For #4/0 Pin, 0.0869 in x 0.1142 in Dia, Straight Flute (MPN 487-4/0)
YANKEE Taper Pin Reamer: For #3 Pin, 0.1875 in x 0.2294 in Dia, Spiral Flute (MPN 491-3)
YANKEE
YANKEE Taper Pin Reamer: For #3 Pin, 0.1875 in x 0.2294 in Dia, Spiral Flute (MPN 491-3)
YANKEE Taper Pin Reamer: For #1 Pin, 0.1447 in x 0.1798 in Dia, Spiral Flute (MPN 491-1)
YANKEE
YANKEE Taper Pin Reamer: For #1 Pin, 0.1447 in x 0.1798 in Dia, Spiral Flute (MPN 491-1)

More from YANKEE

View all YANKEE parts
YANKEE Taper Pin Reamer: For #14 Pin, 1.25 in x 1.542 in Dia, Spiral Flute (MPN 491-14)
YANKEE
YANKEE Taper Pin Reamer: For #14 Pin, 1.25 in x 1.542 in Dia, Spiral Flute (MPN 491-14)
YANKEE Taper Pin Reamer: For #3/0 Pin, 0.125 in x 0.1302 in Dia, Spiral Flute (MPN 491-3/0)
YANKEE
YANKEE Taper Pin Reamer: For #3/0 Pin, 0.125 in x 0.1302 in Dia, Spiral Flute (MPN 491-3/0)
YANKEE Taper Pin Reamer: For #4/0 Pin, 0.0625 in x 0.1142 in Dia, Spiral Flute (MPN 491-4/0)
YANKEE
YANKEE Taper Pin Reamer: For #4/0 Pin, 0.0625 in x 0.1142 in Dia, Spiral Flute (MPN 491-4/0)
YANKEE Taper Pin Reamer: For #12 Pin, 0.8125 in x 1.05 in Dia, Spiral Flute (MPN 491-12)
YANKEE
YANKEE Taper Pin Reamer: For #12 Pin, 0.8125 in x 1.05 in Dia, Spiral Flute (MPN 491-12)
YANKEE Taper Pin Reamer: For #13 Pin, 1 in x 1.259 in Dia, Spiral Flute (MPN 491-13)
YANKEE
YANKEE Taper Pin Reamer: For #13 Pin, 1 in x 1.259 in Dia, Spiral Flute (MPN 491-13)
YANKEE Taper Pin Reamer: For #9 Pin, 0.25 in x 0.6066 in Dia, Spiral Flute (MPN 491-9)
YANKEE
YANKEE Taper Pin Reamer: For #9 Pin, 0.25 in x 0.6066 in Dia, Spiral Flute (MPN 491-9)
YANKEE Taper Pin Reamer: For #6 Pin, 0.25 in x 0.354 in Dia, Spiral Flute (MPN 491-6)
YANKEE
YANKEE Taper Pin Reamer: For #6 Pin, 0.25 in x 0.354 in Dia, Spiral Flute (MPN 491-6)
YANKEE Taper Pin Reamer: For #7/0 Pin, 0.0625 in x 0.0666 in Dia, Spiral Flute (MPN 491-7/0)
YANKEE
YANKEE Taper Pin Reamer: For #7/0 Pin, 0.0625 in x 0.0666 in Dia, Spiral Flute (MPN 491-7/0)