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CLEVELAND Screw Machine Drill Bit: #31, 135° Split Point, TiCN-Coated Cobalt - Cobalt Screw-Machine Length Drill Bits for Deep Hole-Drilling
CLEVELANDCobalt Screw-Machine Length Drill Bits for Deep Hole-Drilling

CLEVELAND Screw Machine Drill Bit: #31, 135° Split Point, TiCN-Coated Cobalt

The CLEVELAND Screw Machine Drill Bit #31 is a TiCN-coated cobalt, fast-spiral drill bit with a 135° split point, designed for deep hole-drilling. It features a 0.1200-inch diameter and is identified by manufacturer…

SKU 3G-OTH-413327

Brand
CLEVELAND
Item
Screw Machine Drill Bit: #31, 135° Split Point, TiCN-Coated Cobalt
Category
Cobalt Screw-Machine Length Drill Bits for Deep Hole-Drilling
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Technical Specifications

CLEVELAND
Manufacturer Part Number
C15321
Type
TiCN-Coated Cobalt, Fast Spiral
Split Point
135°
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CLEVELAND Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The CLEVELAND Screw Machine Drill Bit #31 is a TiCN-coated cobalt, fast-spiral drill bit with a 135° split point, designed for deep hole-drilling. It features a 0.1200-inch diameter and is identified by manufacturer part number C15321.

Frequently Asked Questions

What is a CLEVELAND #31 screw machine drill bit used for?

This CLEVELAND #31 drill bit is designed for deep hole-drilling in tough materials. Its TiCN-coated cobalt construction and 135° split point reduce walking and heat buildup, making it suitable for production machining, automotive, and aerospace applications where precision and durability are critical.

What are the specifications of the CLEVELAND C15321 drill bit?

The CLEVELAND C15321 is a #31 screw-machine length drill bit with a 0.1200-inch diameter, 135° split point, and TiCN-coated cobalt fast-spiral flute design. It is engineered for deep hole-drilling in hard metals, offering improved chip evacuation and extended tool life under demanding conditions.

Where to buy CLEVELAND C15321 drill bits worldwide?

3G Electric supplies the CLEVELAND C15321 drill bit to customers worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this and other precision tooling across 14 industrial departments.

How to select the right screw machine drill bit for deep hole drilling?

Select a bit with a 135° split point to reduce thrust and walking, and a TiCN coating for heat resistance in hard materials. Cobalt construction provides toughness for deep holes. Match diameter and flute length to your hole depth and material. 3G Electric can help source the correct CLEVELAND bit for your application.

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 cobalt screw-machine length drill bits for deep hole-drilling. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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