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YANKEE Counterbore with Built-In Pilot: For 7/8" Screw, 1 in Bore Dia - Built-in-Pilot Counterbores
YANKEEBuilt-in-Pilot Counterbores

YANKEE Counterbore with Built-In Pilot: For 7/8" Screw, 1 in Bore Dia

The YANKEE Counterbore with Built-In Pilot (MPN 301-7/8) is a standard built-in-pilot counterbore designed for 7/8" screws. It features a 1-inch bore diameter and a 1-inch pilot diameter, as specified by the…

SKU 3G-OTH-202253

Brand
YANKEE
Item
Counterbore with Built-In Pilot: For 7/8" Screw, 1 in Bore Dia
Category
Built-in-Pilot Counterbores
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Technical Specifications

YANKEE
Manufacturer Part Number
301-7/8
Bore Dia
1 in
Pilot Dia
1 in
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YANKEE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The YANKEE Counterbore with Built-In Pilot (MPN 301-7/8) is a standard built-in-pilot counterbore designed for 7/8" screws. It features a 1-inch bore diameter and a 1-inch pilot diameter, as specified by the manufacturer.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

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

The YANKEE Counterbore with Built-In Pilot (MPN 301-7/8) is used to create a flat-bottomed recess for a 7/8" screw head in metal or wood. The built-in pilot aligns the bore with an existing hole, ensuring concentricity. It is commonly applied in machining, tooling, and assembly operations where precise countersinking is required.

What are the specifications of the YANKEE Counterbore 301-7/8?

The YANKEE Counterbore 301-7/8 is a standard built-in-pilot counterbore designed for 7/8" screws. It has a 1-inch bore diameter and a 1-inch pilot diameter. The manufacturer part number is 301-7/8. This tool is suitable for general-purpose countersinking in industrial applications.

Where to buy the YANKEE Counterbore 301-7/8 worldwide?

You can source the YANKEE Counterbore 301-7/8 worldwide through 3G Electric, a global industrial equipment distributor established in 1990. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply genuine YANKEE tooling to customers globally.

How to select the correct YANKEE Counterbore for a 7/8" screw?

To select the correct YANKEE Counterbore for a 7/8" screw, ensure the bore diameter matches the screw head size and the pilot diameter fits the existing hole. The YANKEE 301-7/8 features a 1-inch bore and 1-inch pilot, designed specifically for 7/8" screws. Always verify the screw head profile and material before ordering.

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 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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