CHICAGO-LATROBEHigh-Speed Steel Extended-Length Drill Bits

CHICAGO-LATROBE Extra Long Drill Bit: 47/64", 12" Overall Lg, 118° Notched Point

The CHICAGO-LATROBE Extra Long Drill Bit (47/64", MPN 50654) is a high-speed steel extended-length drill bit with a black oxide finish, 12" overall length, and a 118° notched point. It is designed for deep-hole…

SKU 3G-OTH-207440

Brand

CHICAGO-LATROBE

Item

Extra Long Drill Bit: 47/64", 12" Overall Lg, 118° Notched Point

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

50654

Type

Black Oxide HSS 

Overall Lg

12"

Notched Point

118° 

Technical Documents

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CHICAGO-LATROBE Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Frequently Asked Questions

What is the CHICAGO-LATROBE Extra Long Drill Bit 50654 used for?

This 47/64" black oxide HSS drill bit is designed for deep-hole drilling in metal, wood, and plastics where standard-length bits cannot reach. Its 12" overall length and 118° notched point reduce walking and improve cutting efficiency in industrial machining, fabrication, and maintenance applications.

What are the specifications of the CHICAGO-LATROBE 50654 drill bit?

The CHICAGO-LATROBE 50654 is a 47/64" (0.7344") extra long drill bit with a 12" overall length, 118° notched point, and black oxide finish on high-speed steel. It is designed for extended reach drilling and is manufactured under part number 50654.

Where to buy CHICAGO-LATROBE 50654 worldwide?

3G Electric supplies the CHICAGO-LATROBE 50654 extra long drill bit to customers 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 this item.

How to select the right extra long drill bit for deep hole drilling?

Choose a bit with overall length exceeding your hole depth, like the CHICAGO-LATROBE 50654 at 12". Match diameter (47/64") to your fastener or clearance needs. A 118° notched point helps start accurately on curved surfaces. Black oxide HSS offers good wear resistance for general metalworking.

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 high-speed steel extended-length drill bits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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