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CLE-LINE Aircraft Extension Drill: #4, 6" Overall Lg, 135° Split Point - High-Speed Steel Aircraft-Extension Drill Bits
CLE-LINEHigh-Speed Steel Aircraft-Extension Drill Bits

CLE-LINE Aircraft Extension Drill: #4, 6" Overall Lg, 135° Split Point

The CLE-LINE Aircraft Extension Drill: #4 is a high-speed steel aircraft-extension drill bit with a black oxide finish, 6" overall length, and a 135° split point. It is manufactured under part number C23664 and…

SKU 3G-OTH-195295

Also listed as: C 23664 · C-23664

Brand
CLE-LINE
Item
Aircraft Extension Drill: #4, 6" Overall Lg, 135° Split Point
Category
High-Speed Steel Aircraft-Extension Drill Bits
Available to Order
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

CLE-LINE
Manufacturer Part Number
C23664
Type
Black Oxide HSS
Overall Lg
6"
Split Point
135°

Technical Documents

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CLE-LINE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The CLE-LINE Aircraft Extension Drill: #4 is a high-speed steel aircraft-extension drill bit with a black oxide finish, 6" overall length, and a 135° split point. It is manufactured under part number C23664 and features a 0.2090 specification. 3G Electric interprets customer demand and delivers this genuine industrial tool across 14 departments, with specialist expertise in combustion, pumps, and controls.

Frequently Asked Questions

What is a CLE-LINE Aircraft Extension Drill used for?

A CLE-LINE Aircraft Extension Drill is used for drilling in tight, hard-to-reach spaces common in aerospace and metal fabrication. Its extended 6" overall length and 135° split point allow precise entry without walking, while the black oxide HSS construction reduces friction and extends tool life.

What are the specifications of the CLE-LINE C23664 drill bit?

The CLE-LINE C23664 is a #4 high-speed steel aircraft-extension drill bit with a 6" overall length, 135° split point, and black oxide finish. The drill diameter is 0.2090 inches. It is designed for drilling in confined areas where standard-length bits cannot reach.

Where to buy CLE-LINE C23664 aircraft extension drill bits worldwide?

3G Electric supplies and delivers the CLE-LINE C23664 aircraft extension drill bit worldwide. We handle full logistics and customs clearance to ensure your order arrives at your facility, whether you are in North America, Europe, Asia, or the Middle East. Contact us for a quote and delivery timeline.

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

Select an aircraft extension drill bit like the CLE-LINE C23664 based on required reach, hole size, and material. For hard metals, choose black oxide HSS with a 135° split point to reduce walking. Ensure the overall length (here 6") matches your access depth. Always use proper cutting fluid and speed for HSS tools.

Used in

Common applications for CLE-LINE
Structural steel fabrication — CLE-LINE cobalt annular cutters for drilling bolt holes in beams and girders
Maintenance and repair — CLE-LINE taper-shank drill bits for reaming and drilling in machine shops
Metalworking — CLE-LINE tap wrenches for manual threading of holes in steel plates
Construction — CLE-LINE HSS drill bits for drilling into mild steel and alloy steel components
Automotive repair — CLE-LINE annular cutters for cutting holes in chassis and frame members
General machining — CLE-LINE taper-shank drill bits for use on drill presses and lathes

CLE-LINE Products

3G Electric supplies CLE-LINE 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.

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CLE-LINE Aircraft Extension Drill: #4, 12" Overall Lg, 135° Split Point, Black Oxide HSS (MPN C23764)
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