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CLEVELAND Aircraft Extension Drill: #21, 12" Overall Lg, 135° Split Point, HSS - NAS-Spec High-Speed Steel Aircraft-Extension Drill Bits
CLEVELANDNAS-Spec High-Speed Steel Aircraft-Extension Drill Bits

CLEVELAND Aircraft Extension Drill: #21, 12" Overall Lg, 135° Split Point, HSS

The CLEVELAND Aircraft Extension Drill: #21 is an NAS-Spec High-Speed Steel Aircraft-Extension Drill Bit, meeting NAS 907 Type B standards. It features a 0.1590-inch diameter, 12-inch overall length, and a 135° split…

SKU 3G-OTH-208006

Brand
CLEVELAND
Item
Aircraft Extension Drill: #21, 12" Overall Lg, 135° Split Point, HSS
Category
NAS-Spec High-Speed Steel Aircraft-Extension Drill Bits
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Technical Specifications

CLEVELAND
Manufacturer Part Number
C13234
Type
HSS, NAS 907 Type B
Overall Lg
12"
Split Point
135°
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CLEVELAND Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The CLEVELAND Aircraft Extension Drill: #21 is an NAS-Spec High-Speed Steel Aircraft-Extension Drill Bit, meeting NAS 907 Type B standards. It features a 0.1590-inch diameter, 12-inch overall length, and a 135° split point, with manufacturer part number C13234.

Frequently Asked Questions

What is the CLEVELAND Aircraft Extension Drill #21 used for?

The CLEVELAND Aircraft Extension Drill #21 is used for drilling precision holes in aircraft structures and components. Its 12-inch overall length and 135° split point allow access to tight spaces, while the NAS 907 Type B specification ensures compliance with aerospace standards for high-strength materials.

What are the specifications of the CLEVELAND Aircraft Extension Drill #21?

The CLEVELAND Aircraft Extension Drill #21 has a 0.1590-inch diameter, 12-inch overall length, and a 135° split point. It is made of high-speed steel (HSS) and meets NAS 907 Type B standards. The manufacturer part number is C13234.

Where to buy the CLEVELAND Aircraft Extension Drill #21 worldwide?

You can source the CLEVELAND Aircraft Extension Drill #21 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this NAS-spec drill bit.

How to select the right CLEVELAND aircraft extension drill bit?

Select the CLEVELAND aircraft extension drill bit based on hole size, material, and reach requirements. For the #21 size, the 0.1590-inch diameter suits standard aerospace fasteners. The 12-inch length and 135° split point reduce walking on curved surfaces. Always verify NAS 907 Type B compliance for critical applications.

Used in

Common applications for CLEVELAND
Aerospace manufacturing — CLEVELAND NAS-spec aircraft extension drills for drilling fastener holes in aluminum airframe panels.
Bridge construction — CLEVELAND Morse-taper shank bridge reamers for enlarging bolt holes in structural steel.
Automotive production — CLEVELAND chucking reamers for precision finishing of engine component bores.
General metalworking — CLEVELAND single-flute countersinks for deburring holes in mild steel parts.
Tool and die making — CLEVELAND interchangeable-pilot counterbores for creating recesses for socket head cap screws.
Maintenance repair — CLEVELAND cobalt aircraft extension drills for drilling hardened steel in equipment repairs.

CLEVELAND Products

3G Electric supplies CLEVELAND 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.

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