CHICAGO-LATROBEGeneral Purpose Three-Flute Countersinks

CHICAGO-LATROBE Countersink: 100°, 3 Flute, 5/8 in Body Dia

The CHICAGO-LATROBE Countersink is a 100°, general purpose three-flute countersink made from black oxide high speed steel. It features a 5/8 in body diameter and is identified by manufacturer part number 56882.

SKU 3G-OTH-185122

Brand

CHICAGO-LATROBE

Item

Countersink: 100°, 3 Flute, 5/8 in Body Dia

Local availability & support

Delivery: Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment: Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

CHICAGO-LATROBE

Manufacturer Part Number

56882

Type

Black Oxide High Speed Steel 

Flute

3

Body Dia

5/8 in 

Technical Documents

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CHICAGO-LATROBE Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Frequently Asked Questions

What is a CHICAGO-LATROBE 3-flute countersink used for?

A CHICAGO-LATROBE 3-flute countersink creates a 100° chamfer around a drilled hole to seat flathead screws flush with the workpiece surface. It is used in metalworking, machining, and fabrication across industries such as automotive, aerospace, and general manufacturing.

What are the specifications of the CHICAGO-LATROBE 56882 countersink?

The CHICAGO-LATROBE 56882 is a 100° general purpose three-flute countersink with a 5/8 in body diameter. It is made from black oxide high speed steel for wear resistance and reduced friction. The 3-flute design provides smooth cutting and reduced chatter.

Where to buy CHICAGO-LATROBE countersinks worldwide?

3G Electric supplies CHICAGO-LATROBE countersinks worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the 56882 or other cutting tools across 14 industrial departments.

How to select the right countersink for a flathead screw?

Match the countersink angle to the screw head angle — 100° for metric flathead screws, 82° for inch-series. Choose a 3-flute design like the CHICAGO-LATROBE 56882 for reduced vibration in steel. Ensure the body diameter exceeds the screw head size for full seating.

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 general purpose three-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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