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Round adjustable threading die, bright machined finish, high-speed steel

Cleveland Golf

Cleveland Golf C65844 Adjustable Die HSS 5/16-18 UNC pneumatic accessory

SKU CH-YF9P-70657 MPN C65844

Adjustable high-speed steel die cuts 5/16-18 UNC threads with a 1 1/2 inch outside diameter

  • Product typeDies & Taps
  • Main materialHigh speed steel
  • Adjustable die lets you fine-tune thread fit
  • High-speed steel construction resists wear during repeated threading
  • 5/16-18 UNC size matches standard coarse-thread fasteners
  • 1 1/2 inch outside diameter fits common die stocks
  • Right-hand thread direction suits typical bolt applications

Adjustable HSS threading die

The Cleveland Golf C65844 is a round adjustable die made from high speed steel for cutting external threads. It suits maintenance technicians and machinists who need to create or repair UNC threads in steel and other ferrous materials. The bright machined finish provides an uncoated surface for general-purpose threading work. This new accessory fits standard 1-1/2 inch die stocks for hand or machine use.

5/16-18 UNC thread specification

The single specification that decides fit is the 5/16 inch diameter with 18 threads per inch in a Unified National Coarse series. The right-hand thread direction matches the vast majority of standard fasteners. Adjustable construction allows the die to be opened or closed slightly for fit calibration or to compensate for wear. High speed steel construction resists heat during cutting better than carbon steel alternatives.

Capacity for 5/16 inch external threads

This die comfortably handles production of 5/16-18 UNC external threads on rods, bolts or pipe nipples up to the major diameter. The 1/2 inch die thickness provides sufficient bearing length for accurate thread starts. It runs out when the workpiece diameter exceeds 5/16 inch or when a different thread pitch or standard is required. Left-hand thread applications need a separate die.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $52.99
Pricier than about 69% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCleveland
Model nameC65844
Product typeDies & Taps
Size & build
Main materialHigh speed steel

Questions about this item

How does the 18 threads-per-inch pitch behave when cutting into steel with this HSS die?

The 18 TPI UNC pitch produces a standard coarse thread; the high-speed steel body keeps its edge longer than carbon steel, so each pass stays clean in mild or alloy steel without rapid dulling.

What does the 1 1/2-inch outside diameter imply for die-stock compatibility?

The 1 1/2-inch round body fits any 1 1/2-inch die stock or handle, letting you use standard adjustable holders without adapters.

How much room does the 1/2-inch die thickness need inside a tool holder?

The die is 1/2 inch thick, so the holder’s cavity must accept at least that depth; most 1 1/2-inch stocks provide it, but verify before clamping.

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