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CLE-LINE Aircraft Extension Drill: 1/16", 12" 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: 1/16", 12" Overall Lg, 135° Split Point

SKU 3G-OTH-195221

Brand
CLE-LINE
Item
Aircraft Extension Drill: 1/16", 12" Overall Lg, 135° Split Point
Category
High-Speed Steel Aircraft-Extension Drill Bits
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Technical Specifications

CLE-LINE
Manufacturer Part Number
C23721
Type
Black Oxide HSS
Overall Lg
12"
Split Point
135°
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CLE-LINE Products
3G Electric (S) Pte. Ltd. — Singapore

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. The 12" overall length and 135° split point reduce walking and improve accuracy in deep-hole applications.

What are the specifications of the CLE-LINE C23721 drill bit?

The CLE-LINE C23721 is a 1/16" high-speed steel aircraft extension drill with a 12" overall length, 135° split point, and black oxide finish. The black oxide coating improves lubricity and chip flow in ferrous materials.

Where to buy CLE-LINE aircraft extension drills worldwide?

3G Electric supplies CLE-LINE aircraft extension drills worldwide. We handle full logistics and customs clearance to deliver genuine industrial tooling to your facility, regardless of location. Contact us for a quote on the C23721 or other sizes.

How to select the right aircraft extension drill bit?

Select an aircraft extension drill based on hole depth, material hardness, and access constraints. For deep, confined drilling in steel or aluminum, a 135° split point like the CLE-LINE C23721 reduces thrust and prevents wandering. Match the flute length to your required depth.

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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