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KEO Built-in-Pilot Counterbore for M3.5 Screw, 6.5 mm Bore, 3.9 mm Pilot, Cobalt - Built-in-Pilot Counterbores
KEOBuilt-in-Pilot Counterbores

KEO Built-in-Pilot Counterbore for M3.5 Screw, 6.5 mm Bore, 3.9 mm Pilot, Cobalt

The KEO Counterbore is a built-in-pilot counterbore designed for M3.5 screws, featuring a 6.5 mm bore diameter and a 3.9 mm pilot diameter, constructed from cobalt. This standard tool, manufactured by KEO under part…

SKU 3G-OTH-202265

Also listed as: 902000048 · 902 000 048

Brand
KEO
Item
Built-in-Pilot Counterbore for M3.5 Screw, 6.5 mm Bore, 3.9 mm Pilot, Cobalt
Category
Built-in-Pilot Counterbores
Available to Order
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

KEO
Manufacturer Part Number
902-000-048

Technical Documents

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

Product Description

The KEO Counterbore is a built-in-pilot counterbore designed for M3.5 screws, featuring a 6.5 mm bore diameter and a 3.9 mm pilot diameter, constructed from cobalt. This standard tool, manufactured by KEO under part number 902-000-048, is used for creating recessed holes for screw heads in industrial applications.

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 a KEO counterbore used for?

A KEO counterbore creates a flat-bottomed recess for a screw head, allowing it to sit flush with or below the workpiece surface. This M3.5 screw counterbore with a 6.5 mm bore and 3.9 mm pilot is used in machining and assembly applications across industrial departments.

What are the specifications of the KEO counterbore 902-000-048?

The KEO counterbore 902-000-048 is a standard built-in-pilot tool for M3.5 screws. It has a 6.5 mm bore diameter and a 3.9 mm pilot diameter, made from cobalt. This part is manufactured by KEO and is suitable for creating recessed holes in metal and other materials.

Where to buy KEO counterbore 902-000-048 worldwide?

3G Electric supplies the KEO counterbore 902-000-048 worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this cobalt counterbore to your facility. Contact us for availability and lead time on this standard built-in-pilot tool.

How to select the correct KEO counterbore for M3.5 screws?

To select the correct KEO counterbore for M3.5 screws, match the bore diameter to the screw head size and the pilot diameter to the screw's body. For M3.5, the KEO 902-000-048 uses a 6.5 mm bore and 3.9 mm pilot. Always verify the screw's head dimensions and material compatibility before ordering.

Used in

Common applications for KEO
Metalworking — KEO plain-tip center drills for creating accurate starting points in lathe operations
Automotive manufacturing — KEO bell-tip center drills for countersinking holes in engine components
Aerospace machining — KEO radius-tip center drills for reducing stress risers in critical parts
General machining — KEO keyseat cutters for milling keyways in shafts and gears
Tool and die making — KEO TiN-coated center drills for extended tool life in hardened steels
Precision engineering — KEO cobalt center drills for high-temperature alloy applications

KEO Products

3G Electric supplies KEO 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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Compatible alternatives & equivalents

Cross-referenced by specification & description
This built-in-pilot counterbore is designed for M3.5 screws, with a 6.5 mm bore diameter and a 2.9 mm pilot diameter. Made from cobalt, it is used in precision counterboring operations to create flat-bottomed recesses for screw heads in metalworking and machining applications
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This built-in-pilot counterbore is designed for M3.5 screws, with a 6.5 mm bore diameter and a 2.9 mm pilot diameter. Made from cobalt, it is used in precision counterboring operations to create flat-bottomed recesses for screw heads in metalworking and machining applications
This built-in-pilot counterbore is designed for M3 screws, with a 6 mm bore diameter and a 2.5 mm pilot diameter. Constructed from cobalt, it is used to create recessed holes for screw heads in metalworking and assembly operations
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This built-in-pilot counterbore is designed for M3 screws, with a 6 mm bore diameter and a 2.5 mm pilot diameter. Constructed from cobalt, it is used to create recessed holes for screw heads in metalworking and assembly operations
Standard built-in-pilot counterbore for M3 screws. Features a 6 mm bore diameter and 3.4 mm pilot diameter. Constructed from cobalt. Used to create flat-bottomed recesses for screw heads in metal or plastic workpieces during machining and assembly operations
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Standard built-in-pilot counterbore for M3 screws. Features a 6 mm bore diameter and 3.4 mm pilot diameter. Constructed from cobalt. Used to create flat-bottomed recesses for screw heads in metal or plastic workpieces during machining and assembly operations
This built-in-pilot counterbore is designed for M3 screws, with a 6 mm bore diameter and a 3.2 mm pilot diameter. Constructed from cobalt, it creates flat-bottomed recesses for screw heads in metal or plastic workpieces. The integral pilot aligns with existing holes for accurate counterboring in general machining and maintenance tasks
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This built-in-pilot counterbore is designed for M3 screws, with a 6 mm bore diameter and a 3.2 mm pilot diameter. Constructed from cobalt, it creates flat-bottomed recesses for screw heads in metal or plastic workpieces. The integral pilot aligns with existing holes for accurate counterboring in general machining and maintenance tasks
Standard built-in-pilot counterbore for M5 screws, with a 10 mm bore diameter and 5.3 mm pilot diameter. Constructed from cobalt. Used to create flat-bottomed recesses for screw heads in metal or plastic workpieces, common in machining and assembly operations
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Standard built-in-pilot counterbore for M5 screws, with a 10 mm bore diameter and 5.3 mm pilot diameter. Constructed from cobalt. Used to create flat-bottomed recesses for screw heads in metal or plastic workpieces, common in machining and assembly operations
This built-in-pilot counterbore is designed for M6 screws, with an 11 mm bore diameter and a 5 mm pilot diameter. Constructed from cobalt, it is used to create flat-bottomed recesses for screw heads in metalworking and machining applications
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This built-in-pilot counterbore is designed for M6 screws, with an 11 mm bore diameter and a 5 mm pilot diameter. Constructed from cobalt, it is used to create flat-bottomed recesses for screw heads in metalworking and machining applications

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This KEO built-in-pilot counterbore is designed for use with 1/4 in screws, featuring a 3/8 in bore diameter and a 0.25 in pilot diameter. Constructed from cobalt, it creates a flat-bottomed recess for bolt heads or screws to sit flush with or below the workpiece surface. Suitable for general machining and metalworking applications requiring precise counterboring operations
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This KEO built-in-pilot counterbore is designed for use with 1/4 in screws, featuring a 3/8 in bore diameter and a 0.25 in pilot diameter. Constructed from cobalt, it creates a flat-bottomed recess for bolt heads or screws to sit flush with or below the workpiece surface. Suitable for general machining and metalworking applications requiring precise counterboring operations
Built-in-pilot counterbore for creating flat-bottomed recesses for socket-head cap screws. Features a 20 mm bore diameter and 14 mm pilot diameter. Constructed from TiN coated cobalt for wear resistance. Commonly used in machining, fixture building, and industrial assembly
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Built-in-pilot counterbore for creating flat-bottomed recesses for socket-head cap screws. Features a 20 mm bore diameter and 14 mm pilot diameter. Constructed from TiN coated cobalt for wear resistance. Commonly used in machining, fixture building, and industrial assembly
This built-in-pilot counterbore is designed for M3.5 screws, with a 6.5 mm bore diameter and a 3.7 mm pilot diameter. Made from cobalt, it creates recessed cylindrical holes for screw heads in machining and metalworking applications
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This built-in-pilot counterbore is designed for M3.5 screws, with a 6.5 mm bore diameter and a 3.7 mm pilot diameter. Made from cobalt, it creates recessed cylindrical holes for screw heads in machining and metalworking applications
This KEO counterbore is a standard-type cutting tool designed for 5/8" screws. It features a 15/16 in bore diameter and a 0.625 in pilot diameter, constructed from cobalt material. Used in metalworking and machining to create flat-bottomed recesses for bolt heads or nuts, allowing them to sit flush with or below the workpiece surface
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This KEO counterbore is a standard-type cutting tool designed for 5/8" screws. It features a 15/16 in bore diameter and a 0.625 in pilot diameter, constructed from cobalt material. Used in metalworking and machining to create flat-bottomed recesses for bolt heads or nuts, allowing them to sit flush with or below the workpiece surface
This built-in-pilot counterbore is designed for #10 screws, with a 5/16 in bore diameter and a 0.19 in pilot diameter. Made from cobalt, it is used in machining operations to create recessed holes for screw heads, with the built-in pilot ensuring alignment. Typical applications include industrial machining of steel and cast iron
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This built-in-pilot counterbore is designed for #10 screws, with a 5/16 in bore diameter and a 0.19 in pilot diameter. Made from cobalt, it is used in machining operations to create recessed holes for screw heads, with the built-in pilot ensuring alignment. Typical applications include industrial machining of steel and cast iron
This built-in-pilot counterbore is designed for creating flat-bottomed recesses for M4 screw heads. The 8 mm bore diameter and 3.3 mm pilot diameter ensure concentric alignment with pre-drilled holes. Constructed from cobalt, it is suitable for counterboring in metal and plastic parts in machining and fabrication applications
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This built-in-pilot counterbore is designed for creating flat-bottomed recesses for M4 screw heads. The 8 mm bore diameter and 3.3 mm pilot diameter ensure concentric alignment with pre-drilled holes. Constructed from cobalt, it is suitable for counterboring in metal and plastic parts in machining and fabrication applications
This standard-type counterbore creates a flat-bottomed recess for 3/8" screw heads, allowing them to sit flush with or below the workpiece surface. It features a 37/64 in bore diameter and a 0.375 in pilot diameter, constructed from cobalt material. Suitable for general metalworking and machining applications requiring precision countersinking
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This standard-type counterbore creates a flat-bottomed recess for 3/8" screw heads, allowing them to sit flush with or below the workpiece surface. It features a 37/64 in bore diameter and a 0.375 in pilot diameter, constructed from cobalt material. Suitable for general metalworking and machining applications requiring precision countersinking
This counterbore features a built-in pilot for alignment and is made from TiN coated cobalt for wear resistance. It has a 15/32 in bore diameter and a 0.312 in pilot diameter. Used in machining to create recessed flat-bottom holes for screw heads to sit flush with the workpiece surface
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This counterbore features a built-in pilot for alignment and is made from TiN coated cobalt for wear resistance. It has a 15/32 in bore diameter and a 0.312 in pilot diameter. Used in machining to create recessed flat-bottom holes for screw heads to sit flush with the workpiece surface