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KEO Center Drill: Plain Type, #4 1/2, 82°, 4 in Overall Lg - Plain-Tip Center Drills
KEOPlain-Tip Center Drills

KEO Center Drill: Plain Type, #4 1/2, 82°, 4 in Overall Lg

The KEO Center Drill is a plain-type, double-end center drill made from high-speed steel. It is a #4 1/2 size with an 82° angle and a 4-inch overall length, identified by manufacturer part number 907-000-128.

SKU 3G-OTH-182835

Brand
KEO
Item
Center Drill: Plain Type, #4 1/2, 82°, 4 in Overall Lg
Category
Plain-Tip Center Drills
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Technical Specifications

KEO
Manufacturer Part Number
907-000-128
End Type
Double End
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KEO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The KEO Center Drill is a plain-type, double-end center drill made from high-speed steel. It is a #4 1/2 size with an 82° angle and a 4-inch overall length, identified by manufacturer part number 907-000-128.

Frequently Asked Questions

What is a KEO center drill used for?

A KEO center drill creates a conical starting hole in a workpiece for lathe tailstock centers or to support subsequent drilling operations. It is commonly used in machining and metalworking to ensure accurate alignment and reduce runout during turning or grinding processes.

What are the specifications of the KEO #4 1/2 center drill?

The KEO #4 1/2 center drill is a plain-type, double-end tool made from high-speed steel. It has an 82° included angle, a 4-inch overall length, and is identified by manufacturer part number 907-000-128. The double-end design provides two usable cutting ends for extended tool life.

Where to buy KEO center drills worldwide?

3G Electric supplies KEO center drills 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 the KEO #4 1/2 plain-type center drill (MPN 907-000-128) or other sizes.

How to select the right center drill size for a lathe?

Select a center drill size that matches the lathe tailstock center's point diameter and the workpiece weight. The #4 1/2 size from KEO is suitable for medium-duty work. Ensure the drill's 82° angle matches the center's included angle. Always use proper cutting fluid and feed rates for high-speed steel tools.

Used in

Common applications for KEO
Metalworking — KEO plain-tip center drills for creating accurate starting points in lathe operations
Automotive manufacturing — KEO bell-tip center drills for countersinking holes in engine components
Aerospace machining — KEO radius-tip center drills for reducing stress risers in critical parts
General machining — KEO keyseat cutters for milling keyways in shafts and gears
Tool and die making — KEO TiN-coated center drills for extended tool life in hardened steels
Precision engineering — KEO cobalt center drills for high-temperature alloy applications

KEO Products

3G Electric supplies KEO plain-tip center drills. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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