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YANKEE 301-1/4 Built-in-Pilot Counterbore, 1/4 in Bore Dia, 0.25 in Pilot Dia - Built-in-Pilot Counterbores
YANKEEBuilt-in-Pilot Counterbores

YANKEE 301-1/4 Built-in-Pilot Counterbore, 1/4 in Bore Dia, 0.25 in Pilot Dia

The YANKEE Counterbore with Built-In Pilot (MPN 301-1/4) is a standard built-in-pilot counterbore designed for 1/4" screws. It features a 1/4 in bore diameter and a 0.25 in pilot diameter.

SKU 3G-OTH-202228

Also listed as: 30114 · 301 1 4 · 301-1-4

Brand
YANKEE
Item
301-1/4 Built-in-Pilot Counterbore, 1/4 in Bore Dia, 0.25 in Pilot Dia
Part Number
301-1/4
Category
Built-in-Pilot Counterbores
Available to Order
Also known as:301-1/4YANKEE
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

YANKEE
Manufacturer Part Number
301-1/4
Bore Dia
1/4 in
Pilot Dia
0.25 in

Technical Documents

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

Product Description

The YANKEE Counterbore with Built-In Pilot (MPN 301-1/4) is a standard built-in-pilot counterbore designed for 1/4" screws. It features a 1/4 in bore diameter and a 0.25 in pilot diameter.

Frequently Asked Questions

What is a YANKEE Counterbore with Built-In Pilot used for?

A YANKEE Counterbore with Built-In Pilot (MPN 301-1/4) creates a flat-bottomed recess for a 1/4" screw head, allowing the fastener to sit flush with or below the workpiece surface. It is commonly used in metalworking, woodworking, and assembly applications where a clean, countersunk finish is required.

What are the specifications of the YANKEE 301-1/4 counterbore?

The YANKEE 301-1/4 counterbore has a 1/4 in bore diameter and a 0.25 in pilot diameter. It is a standard built-in-pilot design for 1/4" screws. The manufacturer part number is 301-1/4. This tool is suitable for general-purpose counterboring in various materials.

Where to buy a YANKEE counterbore in worldwide?

3G Electric supplies the YANKEE Counterbore with Built-In Pilot (MPN 301-1/4) to customers worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and a quote tailored to your procurement needs.

How to select the correct counterbore for a 1/4" screw?

Select a counterbore with a bore diameter matching the screw head size and a pilot diameter matching the screw's body diameter. For a 1/4" screw, the YANKEE 301-1/4 with a 1/4 in bore and 0.25 in pilot is a standard choice. Always verify the screw head profile and material thickness before ordering.

Used in

Common applications for YANKEE
Metalworking — YANKEE spiral-flute chucking reamers for finishing holes in steel and aluminum components
Plumbing — YANKEE taper pipe reamers for deburring 3/8 inch and 1-1/2 inch cut pipe ends before threading
HVAC — YANKEE taper pipe reamers for preparing refrigerant and water pipe ends for fitting
Industrial piping — YANKEE taper pipe reamers for smoothing cut pipe interiors in maintenance operations
Machine shop — YANKEE straight-flute chucking reamers for precision hole finishing in ferrous and non-ferrous materials
Maintenance and repair — YANKEE chucking reamers in wire-gauge sizes for on-site hole resizing and repair
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YANKEE Products

3G Electric supplies YANKEE built-in-pilot counterbores. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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