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CHICAGO-LATROBE Countersink: 90°, 1 Flute, 3/8 in Body Dia - Fast-Cutting Single-Flute Countersinks
CHICAGO-LATROBEFast-Cutting Single-Flute Countersinks

CHICAGO-LATROBE Countersink: 90°, 1 Flute, 3/8 in Body Dia

The CHICAGO-LATROBE Countersink is a 90°, single-flute, fast-cutting countersink made from black oxide high-speed steel with a 3/8 in body diameter (MPN 56758). It is designed for deburring and countersinking holes…

SKU 3G-OTH-185661

Brand
CHICAGO-LATROBE
Item
Countersink: 90°, 1 Flute, 3/8 in Body Dia
Category
Fast-Cutting Single-Flute Countersinks
Available to Order
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Worldwide Shipping
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Technical specs
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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

CHICAGO-LATROBE
Manufacturer Part Number
56758
Type
Black Oxide High Speed Steel
Flute
1
Body Dia
3/8 in

Technical Documents

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CHICAGO-LATROBE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The CHICAGO-LATROBE Countersink is a 90°, single-flute, fast-cutting countersink made from black oxide high-speed steel with a 3/8 in body diameter (MPN 56758). It is designed for deburring and countersinking holes in metal.

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 CHICAGO-LATROBE 56758 countersink used for?

The CHICAGO-LATROBE 56758 is a 90° single-flute countersink used to create a conical recess for flat-head screws in metalworking and machining. Its black oxide high-speed steel construction provides wear resistance and reduces chip buildup, making it suitable for production deburring and countersinking on ferrous materials.

What are the specifications of the CHICAGO-LATROBE 56758 countersink?

The CHICAGO-LATROBE 56758 is a 90° countersink with 1 flute and a 3/8 in body diameter. It is made from black oxide high-speed steel (HSS) for durability and heat resistance. The manufacturer part number is 56758, and it is designed for fast cutting in single-flute applications.

Where to buy CHICAGO-LATROBE 56758 countersink worldwide?

3G Electric supplies the CHICAGO-LATROBE 56758 countersink to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this and other cutting tools across 14 industrial departments.

How to select the right countersink for a machining job?

Select a countersink based on the screw head angle (typically 90° or 82°), material of the workpiece, and desired finish. For ferrous metals, black oxide HSS like the CHICAGO-LATROBE 56758 reduces friction and extends tool life. Match the body diameter to the screw head size and ensure the flute count suits your chip evacuation needs.

Used in

Common applications for CHICAGO-LATROBE
Aerospace assembly — Chicago-Latrobe NAS 907 Type B aircraft-extension drill bits for drilling fastener holes in aluminum and titanium skins.
Metal fabrication — Chicago-Latrobe reduced-shank drill bit sets for enlarging holes in structural steel using magnetic drill presses.
Maintenance repair — Chicago-Latrobe left-hand cobalt jobber-length drill bits for removing broken bolts in machinery.
Tool and die making — Chicago-Latrobe jobber-length drill bit sets with 135° split point for precision hole drilling in hardened steels.
Automotive repair — Chicago-Latrobe spiral-flute screw extractors for removing seized fasteners in engine blocks or exhaust systems.
General manufacturing — Chicago-Latrobe HSS jobber-length drill bits for production drilling in mild steel and cast iron.

CHICAGO-LATROBE Products

3G Electric supplies CHICAGO-LATROBE fast-cutting single-flute countersinks. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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