Cleveland Golf
Cleveland Golf 25807 Chucking Reamer 3/8 inch 6 Flute HSS
A high-speed steel chucking reamer with six straight flutes for precise hole finishing
- TypeAngle, Pitch & Slope Locators
- High-speed steel resists wear during repeated reaming
- Six-flute design produces smoother hole finishes
- Straight shank fits standard chucks and collets
- Bright uncoated surface suits general-purpose machining
- Fractional 3/8 inch size matches common fastener clearances
Precision Hole Finishing Tool
The Cleveland Golf 25807 chucking reamer is a 3/8 inch, six-flute cutting tool made from high-speed steel. It is designed for machinists and maintenance technicians who need to enlarge and finish existing holes to precise tolerances. The straight-flute geometry suits through-hole and blind-hole applications in a variety of ferrous and non-ferrous materials. This uncoated tool delivers reliable performance for general-purpose workshop use.
Thermal And Power Behaviour In Use
As a non-powered hand tool, the reamer generates no operational noise or electrical power draw. Heat is produced only through friction at the cutting interface during manual or machine-driven rotation. Proper cutting fluid application manages this thermal load effectively, preserving the high-speed steel edge and workpiece integrity. There are no thermals, acoustics or power metrics to consider beyond standard machining practice.
Upgrade Path And Limitations
This reamer replaces worn or undersized finishing tools when hole accuracy or surface finish degrades beyond acceptable limits. The jump is worth it when a standard drill leaves a rough or oversized bore that requires tight dimensional control. It is not suited for heavy stock removal, roughing operations, or creating holes from solid material where a drill or boring bar is required first.
Highlights
- High-speed steel resists wear during repeated reaming
- Six-flute design produces smoother hole finishes
- Straight shank fits standard chucks and collets
- Bright uncoated surface suits general-purpose machining
- Fractional 3/8 inch size matches common fastener clearances
Specifications
| Brand | Cleveland |
|---|---|
| Type | Angle, Pitch & Slope Locators |
Questions about this item
How do I install the Cleveland 25807 chucking reamer and what step is often missed?
Mount the 3/8 inch straight-shank tool in a drill-press or lathe chuck, tighten securely, then apply cutting fluid before starting — many users forget the lubrication step.
What maintenance or replacement will the Cleveland 25807 need later?
The six-flute high-speed steel cutting edges dull with use; plan to resharpen or replace the reamer once hole finish or diameter tolerance degrades.
What limit appears first on the Cleveland 25807 during sustained cutting?
Heat buildup in the uncoated HSS flutes reduces edge life fastest, so cutting speed and feed must stay conservative to avoid premature wear.
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