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

CHICAGO-LATROBE Aircraft Extension Drill: #37, 12" Overall Lg, 135° Split 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: #37, 12" Overall Lg, 135° Split Point

The CHICAGO-LATROBE Aircraft Extension Drill: #37 is an NAS-Spec High-Speed Steel Aircraft-Extension Drill Bit (SKU 11161, MPN 11161). It features a 0.1040-inch diameter, 12-inch overall length, 135° split point, and…

SKU 3G-OTH-207962

Brand
CHICAGO-LATROBE
Item
Aircraft Extension Drill: #37, 12" Overall Lg, 135° Split 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
11161
Type
Black Oxide HSS
Overall Lg
12"
Split 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: #37 is an NAS-Spec High-Speed Steel Aircraft-Extension Drill Bit (SKU 11161, MPN 11161). It features a 0.1040-inch diameter, 12-inch overall length, 135° split point, and black oxide HSS construction, conforming to NAS 907 Type B.

Frequently Asked Questions

What is the CHICAGO-LATROBE Aircraft Extension Drill #37 used for?

The CHICAGO-LATROBE Aircraft Extension Drill #37 is used for drilling precision holes in aircraft structures and other high-strength materials. Its 12-inch overall length and 135° split point allow access to tight spaces and reduce walking on curved surfaces, making it ideal for aerospace maintenance and manufacturing applications.

What are the specifications of the CHICAGO-LATROBE Aircraft Extension Drill #37?

The CHICAGO-LATROBE Aircraft Extension Drill #37 (MPN 11161) has a 0.1040-inch diameter, 12-inch overall length, 135° split point, and black oxide HSS construction. It conforms to NAS 907 Type B, ensuring compliance with aerospace standards for high-speed steel drill bits.

Where to buy the CHICAGO-LATROBE Aircraft Extension Drill #37 worldwide?

You can source the CHICAGO-LATROBE Aircraft Extension Drill #37 worldwide through 3G Electric. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this NAS-spec drill bit.

How to select the right CHICAGO-LATROBE Aircraft Extension Drill for aerospace work?

To select the right CHICAGO-LATROBE Aircraft Extension Drill, match the diameter and length to your hole depth and material. The #37 size (0.1040-inch) with a 135° split point is ideal for hard metals. Ensure the drill conforms to NAS 907 Type B for aerospace compliance. 3G Electric can help source the correct specification.

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: #43, 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11167)
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: #43, 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11167)
CHICAGO-LATROBE Aircraft Extension Drill: #33, 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11157)
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: #33, 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11157)
CHICAGO-LATROBE Aircraft Extension Drill: #39, 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11163)
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: #39, 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11163)
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: #13, 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11137)
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: #13, 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11137)
CHICAGO-LATROBE Aircraft Extension Drill: #33, 6" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11063)
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: #33, 6" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11063)

More from CHICAGO-LATROBE

View all CHICAGO-LATROBE parts
CHICAGO-LATROBE Aircraft Extension Drill: 25/64", 6" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11023)
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: 25/64", 6" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11023)
CHICAGO-LATROBE Aircraft Extension Drill: 3/32", 6" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11003)
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: 3/32", 6" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11003)
CHICAGO-LATROBE Aircraft Extension Drill: 11/32", 6" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11020)
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: 11/32", 6" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11020)
CHICAGO-LATROBE Aircraft Extension Drill: #57, 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11181)
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: #57, 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11181)
CHICAGO-LATROBE Aircraft Extension Drill: #59, 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11183)
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: #59, 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11183)
CHICAGO-LATROBE Aircraft Extension Drill: 27/64", 6" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11025)
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: 27/64", 6" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11025)
CHICAGO-LATROBE Aircraft Extension Drill: 9/32", 6" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11016)
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: 9/32", 6" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11016)
CHICAGO-LATROBE Aircraft Extension Drill: 31/64", 6" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11029)
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: 31/64", 6" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11029)