We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

CHICAGO-LATROBE Aircraft Extension Drill: #56, 6" Overall Lg, 135° Point - NAS-Spec High-Speed Steel Aircraft-Extension Drill Bits
CHICAGO-LATROBENAS-Spec High-Speed Steel Aircraft-Extension Drill Bits

CHICAGO-LATROBE Aircraft Extension Drill: #56, 6" Overall Lg, 135° Point

The CHICAGO-LATROBE Aircraft Extension Drill: #56 is a NAS-Spec high-speed steel aircraft-extension drill bit, model 11086 (MPN 11086). It features a 0.0465-inch diameter, 6-inch overall length, 135° point, and black…

SKU 3G-OTH-207914

Brand
CHICAGO-LATROBE
Item
Aircraft Extension Drill: #56, 6" Overall Lg, 135° Point
Category
NAS-Spec High-Speed Steel Aircraft-Extension Drill Bits
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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
11086
Type
Black Oxide HSS
Overall Lg
6"
Point
135°

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The CHICAGO-LATROBE Aircraft Extension Drill: #56 is a NAS-Spec high-speed steel aircraft-extension drill bit, model 11086 (MPN 11086). It features a 0.0465-inch diameter, 6-inch overall length, 135° point, and black oxide finish, conforming to NAS 907 Type B standards.

Frequently Asked Questions

What is the CHICAGO-LATROBE Aircraft Extension Drill #56 used for?

This NAS-spec high-speed steel drill bit is designed for drilling in tight, hard-to-reach spaces on aircraft structures. Its 6-inch extension and 135° point allow precise hole creation in aluminum and sheet metal, meeting NAS 907 Type B standards for aerospace maintenance and manufacturing.

What are the specifications of the CHICAGO-LATROBE 11086 drill bit?

The CHICAGO-LATROBE 11086 is a #56 aircraft extension drill bit with a 0.0465-inch diameter, 6-inch overall length, 135° point, and black oxide HSS finish. It conforms to NAS 907 Type B and is part of the 11086 series, designed for aerospace applications.

Where to buy CHICAGO-LATROBE aircraft extension drill bits worldwide?

3G Electric supplies CHICAGO-LATROBE aircraft extension drill bits worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver genuine NAS-spec tooling like the 11086 (MPN 11086) to your facility, regardless of location.

How to select the right aircraft extension drill bit for tight spaces?

Choose a drill bit with a length that reaches your work area without excessive overhang. For aerospace work, NAS 907 Type B bits like the CHICAGO-LATROBE #56 offer a 135° split point to reduce walking and a black oxide finish for chip evacuation. Match diameter to your fastener or hole requirement.

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

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
CHICAGO-LATROBE Aircraft Extension Drill: #57, 6" Overall Lg, 135° Point, Black Oxide HSS (MPN 11087)
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: #57, 6" Overall Lg, 135° Point, Black Oxide HSS (MPN 11087)
CHICAGO-LATROBE Aircraft Extension Drill: #55, 6" Overall Lg, 135° Point, Black Oxide HSS (MPN 11085)
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: #55, 6" Overall Lg, 135° Point, Black Oxide HSS (MPN 11085)
CHICAGO-LATROBE Aircraft Extension Drill: #54, 6" Overall Lg, 135° Point, Black Oxide HSS (MPN 11084)
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: #54, 6" Overall Lg, 135° Point, Black Oxide HSS (MPN 11084)
CHICAGO-LATROBE Aircraft Extension Drill: #53, 6" Overall Lg, 135° Point, Black Oxide HSS (MPN 11083)
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: #53, 6" Overall Lg, 135° Point, Black Oxide HSS (MPN 11083)
CHICAGO-LATROBE Aircraft Extension Drill: #58, 6" Overall Lg, 135° Point, Black Oxide HSS (MPN 11088)
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: #58, 6" Overall Lg, 135° Point, Black Oxide HSS (MPN 11088)
CHICAGO-LATROBE Aircraft Extension Drill: #59, 6" Overall Lg, 135° Point, Black Oxide HSS (MPN 11089)
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: #59, 6" Overall Lg, 135° Point, Black Oxide HSS (MPN 11089)

More from CHICAGO-LATROBE

View all CHICAGO-LATROBE parts
CHICAGO-LATROBE Aircraft Extension Drill: 9/64", 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11101)
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: 9/64", 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11101)
CHICAGO-LATROBE Aircraft Extension Drill: #5, 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11129)
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: #5, 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11129)
CHICAGO-LATROBE Aircraft Extension Drill: #10, 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11134)
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: #10, 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11134)
CHICAGO-LATROBE Aircraft Extension Drill: #45, 6" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11075)
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: #45, 6" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11075)
CHICAGO-LATROBE Aircraft Extension Drill: #9, 6" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11039)
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: #9, 6" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11039)
CHICAGO-LATROBE Aircraft Extension Drill: #34, 6" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11064)
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: #34, 6" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11064)
CHICAGO-LATROBE Aircraft Extension Drill: #37, 6" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11067)
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: #37, 6" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11067)
CHICAGO-LATROBE Aircraft Extension Drill: #51, 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11175)
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: #51, 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11175)