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YANKEE Taper Pin Reamer: For #4/0 Pin, 0.0625 in x 0.1142 in Dia - Spiral-Flute Taper Pin Reamers
YANKEESpiral-Flute Taper Pin Reamers

YANKEE Taper Pin Reamer: For #4/0 Pin, 0.0625 in x 0.1142 in Dia

YANKEE Spiral-Flute Taper Pin Reamers.

SKU 3G-OTH-203287

Also listed as: 49140 · 491 4 0 · 491-4-0

Brand
YANKEE
Item
Taper Pin Reamer: For #4/0 Pin, 0.0625 in x 0.1142 in Dia
Category
Spiral-Flute Taper Pin Reamers
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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
491-4/0

Technical Documents

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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 pin holes in metal assemblies. It creates a smooth, accurate taper that matches standard taper pins, ensuring secure mechanical fastening in industrial equipment, machinery, and tooling applications.

What are the specifications of the YANKEE 491-4/0 Taper Pin Reamer?

The YANKEE 491-4/0 is a spiral-flute taper pin reamer designed for a #4/0 pin. It has a small-end diameter of 0.0625 in and a large-end diameter of 0.1142 in. The spiral flute design helps clear chips during operation, improving finish and accuracy in ferrous and non-ferrous materials.

Where to buy YANKEE Taper Pin Reamers worldwide?

3G Electric supplies YANKEE taper pin reamers worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on the YANKEE 491-4/0 or other taper pin reamer sizes.

How to select the correct YANKEE taper pin reamer size?

Select a YANKEE taper pin reamer by matching the reamer's pin number (e.g., #4/0) to the taper pin you intend to install. The reamer's small and large diameters must correspond to the pin's taper. Always verify the manufacturer's part number, such as 491-4/0, to ensure correct fit.

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.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
YANKEE Taper Pin Reamer: For #4/0 Pin, 0.0869 in x 0.1142 in Dia, Helical Flute (MPN 488-4/0)
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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 #4/0 Pin, 0.0869 in x 0.1142 in Dia, Straight Flute (MPN 487-4/0)
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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 #4 Pin, 0.2071 in x 0.2604 in Dia, Helical Flute (MPN 488-4)
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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 #5/0 Pin, 0.0625 in x 0.0966 in Dia, Spiral Flute (MPN 491-5/0)
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YANKEE Taper Pin Reamer: For #5/0 Pin, 0.0625 in x 0.0966 in Dia, Spiral Flute (MPN 491-5/0)
YANKEE Taper Pin Reamer: For #3/0 Pin, 0.125 in x 0.1302 in Dia, Spiral Flute (MPN 491-3/0)
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YANKEE Taper Pin Reamer: For #3/0 Pin, 0.125 in x 0.1302 in Dia, Spiral Flute (MPN 491-3/0)
This YANKEE taper pin reamer is designed for #4 taper pins, with a diameter range of 0.2071 in to 0.2604 in. The straight-flute configuration allows for precise enlargement and finishing of tapered holes in metal or wood. Commonly used in machinery assembly, fixture building, and maintenance for secure, removable pin connections
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This YANKEE taper pin reamer is designed for #4 taper pins, with a diameter range of 0.2071 in to 0.2604 in. The straight-flute configuration allows for precise enlargement and finishing of tapered holes in metal or wood. Commonly used in machinery assembly, fixture building, and maintenance for secure, removable pin connections

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This spiral-flute 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. The spiral flute geometry facilitates smooth cutting and efficient chip evacuation. It is used to precisely enlarge and finish tapered holes in metal assemblies for a tight, removable pin fit
YANKEE Taper Pin Reamer: For #2/0 Pin, 0.125 in x 0.1462 in Dia, Spiral Flute (MPN 491-2/0)
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