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CLEVELAND Jobber Length Drill Bit: 29/64", 135° Split Point, Black Oxide Cobalt - Short-Flute Cobalt Jobber-Length Drill Bits
CLEVELANDShort-Flute Cobalt Jobber-Length Drill Bits

CLEVELAND Jobber Length Drill Bit: 29/64", 135° Split Point, Black Oxide Cobalt

The CLEVELAND Jobber Length Drill Bit (29/64", MPN C15991) is a short-flute cobalt jobber-length drill bit with a 135° split point, black oxide cobalt finish, and fast spiral design. It features a 0.4531-inch…

SKU 3G-OTH-213578

Also listed as: C 15991 · C-15991

Brand
CLEVELAND
Item
Jobber Length Drill Bit: 29/64", 135° Split Point, Black Oxide Cobalt
Category
Short-Flute Cobalt Jobber-Length Drill Bits
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

CLEVELAND
Manufacturer Part Number
C15991
Type
Black Oxide Cobalt, Fast Spiral
Split Point
135°

Technical Documents

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CLEVELAND Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The CLEVELAND Jobber Length Drill Bit (29/64", MPN C15991) is a short-flute cobalt jobber-length drill bit with a 135° split point, black oxide cobalt finish, and fast spiral design. It features a 0.4531-inch diameter for precise drilling in demanding materials.

Frequently Asked Questions

What is a CLEVELAND jobber length drill bit used for?

CLEVELAND jobber length drill bits are used for general-purpose drilling in metal, wood, and plastics. The 29/64" black oxide cobalt fast spiral design is ideal for high-speed applications in tough materials like stainless steel and alloy steels, providing heat resistance and extended tool life.

What are the specifications of the CLEVELAND C15991 drill bit?

The CLEVELAND C15991 is a 29/64" (0.4531 inch) jobber length drill bit with a 135° split point, black oxide cobalt finish, and fast spiral flute design. It is a short-flute cobalt jobber-length bit, engineered for precision and durability in demanding industrial drilling operations.

Where to buy CLEVELAND C15991 drill bits worldwide?

3G Electric supplies CLEVELAND C15991 drill bits worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this 29/64" black oxide cobalt jobber length drill bit for your machining needs.

How to select the right CLEVELAND jobber length drill bit?

Select a CLEVELAND jobber length drill bit based on material, hole size, and speed. For tough alloys, choose cobalt steel with a 135° split point to reduce walking and heat. Match the 29/64" diameter to your application. 3G Electric can help you specify the correct bit for your operation.

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 short-flute cobalt jobber-length 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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