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

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

The CHICAGO-LATROBE Countersink is a 90°, single-flute, fast-cutting countersink made from black oxide high speed steel with a 1 in body diameter (MPN 56778). 3G Electric interprets your demand for this genuine…

SKU 3G-OTH-185327

Brand
CHICAGO-LATROBE
Item
Countersink: 90°, 1 Flute, 1 in Body Dia
Category
Fast-Cutting Single-Flute Countersinks
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Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
56778
Type
Black Oxide High Speed Steel
Flute
1
Body Dia
1 in
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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 1 in body diameter (MPN 56778). 3G Electric interprets your demand for this genuine industrial tool and delivers it with accountability, backed by specialist sourcing across 14 industrial departments.

Frequently Asked Questions

What is the CHICAGO-LATROBE Countersink 56778 used for?

The CHICAGO-LATROBE 56778 is a 90° single-flute countersink used to create chamfered holes for flush-mounting flathead screws in metalworking and fabrication. Its black oxide high-speed steel construction suits general-purpose deburring and countersinking on ferrous and non-ferrous materials.

What are the specifications of the CHICAGO-LATROBE Countersink 56778?

The CHICAGO-LATROBE 56778 is a 90° countersink with a 1 in body diameter, one flute, and black oxide high-speed steel construction. It is designed for fast cutting and clean chamfers in industrial drilling applications. The manufacturer part number is 56778.

Where to buy CHICAGO-LATROBE Countersink 56778 worldwide?

3G Electric supplies the CHICAGO-LATROBE 56778 countersink worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this tool to any country.

How to select the right CHICAGO-LATROBE countersink for your application?

Select a CHICAGO-LATROBE countersink based on the required chamfer angle (e.g., 90° for standard flathead screws), body diameter matching the screw head size, and material compatibility. For general metalworking, the black oxide high-speed steel 56778 offers durability and chip evacuation for clean results.

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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