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CHICAGO-LATROBE Countersink: 100°, 3 Flute, 1/2 in Body Dia - General Purpose Three-Flute Countersinks
CHICAGO-LATROBEGeneral Purpose Three-Flute Countersinks

CHICAGO-LATROBE Countersink: 100°, 3 Flute, 1/2 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 1/2 in body diameter and is identified by manufacturer part number 56880.

SKU 3G-OTH-184757

Brand
CHICAGO-LATROBE
Item
Countersink: 100°, 3 Flute, 1/2 in Body Dia
Category
General Purpose Three-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
56880
Type
Black Oxide High Speed Steel
Flute
3
Body Dia
1/2 in

Technical Documents

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

Product Description

The CHICAGO-LATROBE Countersink is a 100°, general purpose three-flute countersink made from black oxide high speed steel. It features a 1/2 in body diameter and is identified by manufacturer part number 56880.

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 3-flute countersink used for?

A CHICAGO-LATROBE 3-flute countersink creates a 100° chamfer around a drilled hole, allowing screw heads to sit flush with the workpiece surface. It is commonly used in metalworking, machining, and fabrication for deburring and preparing holes for fasteners.

What are the specifications of the CHICAGO-LATROBE 56880 countersink?

The CHICAGO-LATROBE 56880 is a 100° general-purpose three-flute countersink with a 1/2 in body diameter. It is made from black oxide high-speed steel for wear resistance and reduced friction. The 3-flute design provides smooth, chatter-free operation in ferrous and non-ferrous materials.

Where to buy CHICAGO-LATROBE countersinks worldwide?

3G Electric supplies CHICAGO-LATROBE countersinks worldwide. As a global industrial sourcing partner, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the 56880 or other cutting tools across 14 industrial departments.

How to select the right countersink for a machining job?

Match the countersink angle (e.g., 100°) to your fastener head angle. Choose flute count based on material: 3-flute designs like the CHICAGO-LATROBE 56880 reduce chatter in harder metals. Body diameter must exceed the hole size. Black oxide HSS suits general-purpose use; for abrasive materials, consider carbide.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
CHICAGO-LATROBE Countersink: 100°, 3 Flute, 3/4 in Body Dia, Black Oxide High Speed Steel (MPN 56884)
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CHICAGO-LATROBE Countersink: 100°, 3 Flute, 3/4 in Body Dia, Black Oxide High Speed Steel (MPN 56884)
CHICAGO-LATROBE Countersink: 90°, 3 Flute, 1/2 in Body Dia, Black Oxide High Speed Steel (MPN 56859)
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CHICAGO-LATROBE Countersink: 90°, 3 Flute, 1/2 in Body Dia, Black Oxide High Speed Steel (MPN 56859)
CHICAGO-LATROBE Countersink: 90°, 3 Flute, 5/8 in Body Dia, Black Oxide High Speed Steel (MPN 56862)
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CHICAGO-LATROBE Countersink: 90°, 3 Flute, 5/8 in Body Dia, Black Oxide High Speed Steel (MPN 56862)
CHICAGO-LATROBE Countersink: 82°, 3 Flute, 1/2 in Body Dia, Black Oxide High Speed Steel (MPN 56839)
CHICAGO-LATROBE
CHICAGO-LATROBE Countersink: 82°, 3 Flute, 1/2 in Body Dia, Black Oxide High Speed Steel (MPN 56839)
CHICAGO-LATROBE Countersink: 90°, 3 Flute, 3/8 in Body Dia, Black Oxide High Speed Steel (MPN 56858)
CHICAGO-LATROBE
CHICAGO-LATROBE Countersink: 90°, 3 Flute, 3/8 in Body Dia, Black Oxide High Speed Steel (MPN 56858)
CHICAGO-LATROBE Countersink: 82°, 3 Flute, 3/4 in Body Dia, Black Oxide High Speed Steel (MPN 56844)
CHICAGO-LATROBE
CHICAGO-LATROBE Countersink: 82°, 3 Flute, 3/4 in Body Dia, Black Oxide High Speed Steel (MPN 56844)

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CHICAGO-LATROBE Countersink: 100°, 3 Flute, 5/8 in Body Dia, Black Oxide High Speed Steel (MPN 56882)
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CHICAGO-LATROBE Countersink: 82°, 3 Flute, 1/2 in Body Dia, Black Oxide High Speed Steel (MPN 56840)
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CHICAGO-LATROBE Countersink: 82°, 3 Flute, 1/2 in Body Dia, Black Oxide High Speed Steel (MPN 56840)
CHICAGO-LATROBE Countersink: 90°, 3 Flute, 1/4 in Body Dia, 3/16 in Shank (MPN 56856)
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