Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
CHICAGO-LATROBE Aircraft Extension Drill: 3/8", 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: 3/8", 12" Overall Lg, 135° Split Point

The CHICAGO-LATROBE Aircraft Extension Drill is a 3/8" NAS-Spec High-Speed Steel Aircraft-Extension Drill Bit (MPN 11116). It features a 12" overall length, 135° split point, and black oxide finish on HSS. This tool…

SKU 3G-OTH-207872

Brand
CHICAGO-LATROBE
Item
Aircraft Extension Drill: 3/8", 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 engineer
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

Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
11116
Type
Black Oxide HSS
Overall Lg
12"
Split Point
135°
View Full Spec Sheet

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 is a 3/8" NAS-Spec High-Speed Steel Aircraft-Extension Drill Bit (MPN 11116). It features a 12" overall length, 135° split point, and black oxide finish on HSS. This tool meets NAS 907 Type B specifications and has a diameter of 0.3750 inches.

Frequently Asked Questions

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

This drill is designed for aerospace and industrial applications requiring deep-hole drilling in metal. Its 12" overall length and 135° split point allow precise entry and chip evacuation in tight spaces, meeting NAS 907 Type B standards for aircraft maintenance and fabrication.

What are the specifications of the CHICAGO-LATROBE 11116 drill?

The CHICAGO-LATROBE 11116 is a 3/8" (0.3750") diameter HSS aircraft-extension drill with a 12" overall length, 135° split point, and black oxide finish. It conforms to NAS 907 Type B specifications and is made by CHICAGO-LATROBE.

Where to buy CHICAGO-LATROBE 11116 worldwide?

3G Electric supplies the CHICAGO-LATROBE 11116 worldwide. As a global industrial distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.

How to select the right aircraft extension drill for deep-hole drilling?

Choose a drill that meets NAS 907 Type B specs for aerospace work, like the CHICAGO-LATROBE 11116. Ensure overall length matches hole depth, and use a 135° split point for self-centering. Match diameter to fastener size and material hardness.

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 →

Similar products

Matched by specification & description
CHICAGO-LATROBE Aircraft Extension Drill: 5/16", 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11112). Key specifications — attr1234097: 0.3125; attr1234190: NAS 907 Type B.
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: 5/16", 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11112). Key specifications — attr1234097: 0.3125; attr1234190: NAS 907 Type B.
CHICAGO-LATROBE Aircraft Extension Drill: 13/32", 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11118). Key specifications — attr1234097: 0.4063; attr1234190: NAS 907 Type B.
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: 13/32", 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11118). Key specifications — attr1234097: 0.4063; attr1234190: NAS 907 Type B.
CHICAGO-LATROBE Aircraft Extension Drill: 1/4", 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11108). Key specifications — attr1234097: 0.2500; attr1234190: NAS 907 Type B.
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: 1/4", 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11108). Key specifications — attr1234097: 0.2500; attr1234190: NAS 907 Type B.
CHICAGO-LATROBE Aircraft Extension Drill: 7/16", 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11120). Key specifications — attr1234097: 0.4375; attr1234190: NAS 907 Type B.
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: 7/16", 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11120). Key specifications — attr1234097: 0.4375; attr1234190: NAS 907 Type B.
CHICAGO-LATROBE Aircraft Extension Drill: 11/32", 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11114). Key specifications — attr1234097: 0.3438; attr1234190: NAS 907 Type B.
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: 11/32", 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11114). Key specifications — attr1234097: 0.3438; attr1234190: NAS 907 Type B.
CHICAGO-LATROBE Aircraft Extension Drill: 15/32", 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11122). Key specifications — attr1234097: 0.4688; attr1234190: NAS 907 Type B.
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: 15/32", 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11122). Key specifications — attr1234097: 0.4688; attr1234190: NAS 907 Type B.

More from CHICAGO-LATROBE

View all CHICAGO-LATROBE parts →
CHICAGO-LATROBE Aircraft Extension Drill: 15/32", 6" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11028). Key specifications — attr1234097: 0.4688; attr1234190: NAS 907 Type B.
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: 15/32", 6" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11028). Key specifications — attr1234097: 0.4688; attr1234190: NAS 907 Type B.
CHICAGO-LATROBE Aircraft Extension Drill: #17, 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11141). Key specifications — attr1234097: 0.1730; attr1234190: NAS 907 Type B.
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: #17, 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11141). Key specifications — attr1234097: 0.1730; attr1234190: NAS 907 Type B.
CHICAGO-LATROBE Aircraft Extension Drill: 3/16", 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11104). Key specifications — attr1234097: 0.1875; attr1234190: NAS 907 Type B.
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: 3/16", 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11104). Key specifications — attr1234097: 0.1875; attr1234190: NAS 907 Type B.
CHICAGO-LATROBE Aircraft Extension Drill: #47, 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11171). Key specifications — attr1234097: 0.0785; attr1234190: NAS 907 Type B.
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: #47, 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11171). Key specifications — attr1234097: 0.0785; attr1234190: NAS 907 Type B.
CHICAGO-LATROBE Aircraft Extension Drill: #42, 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11166). Key specifications — attr1234097: 0.0935; attr1234190: NAS 907 Type B.
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: #42, 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11166). Key specifications — attr1234097: 0.0935; attr1234190: NAS 907 Type B.
CHICAGO-LATROBE Aircraft Extension Drill: Letter O, 12" Overall Lg, 135° Split Point, NAS 907 Type B (MPN 11234). Key specifications — attr1234097: 0.3160; attr1234190: NAS 907 Type B.
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: Letter O, 12" Overall Lg, 135° Split Point, NAS 907 Type B (MPN 11234). Key specifications — attr1234097: 0.3160; attr1234190: NAS 907 Type B.
CHICAGO-LATROBE Aircraft Extension Drill: #20, 6" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11050). Key specifications — attr1234097: 0.1610; attr1234190: NAS 907 Type B.
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: #20, 6" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11050). Key specifications — attr1234097: 0.1610; attr1234190: NAS 907 Type B.
CHICAGO-LATROBE Aircraft Extension Drill: #15, 6" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11045). Key specifications — attr1234097: 0.1800; attr1234190: NAS 907 Type B.
CHICAGO-LATROBE
CHICAGO-LATROBE Aircraft Extension Drill: #15, 6" Overall Lg, 135° Split Point, Black Oxide HSS (MPN 11045). Key specifications — attr1234097: 0.1800; attr1234190: NAS 907 Type B.