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Carbide end mill, half inch diameter, uncoated finish, Weldon flat shank

Micro 100

Micro 100 EMS-500-4 Carbide End Mill .5 in Diameter 1 in Cut Length

SKU CH-27BJ-GX316

A carbide end mill with a half-inch diameter and one-inch cut length for milling operations

  • Product typeHole, Drill, Bore & Wire Gauges
  • Carbide construction resists wear during heavy milling
  • Half-inch diameter suits standard tool-holders
  • One-inch cut length handles deep slots
  • Uncoated surface works with multiple materials
  • Weldon flat prevents tool slippage in the spindle

Micro 100 EMS-500-4 Carbide End Mill

The Micro 100 EMS-500-4 is a solid carbide square end mill built for general-purpose milling in a workshop or light production setting. Its uncoated substrate and Weldon flat shank suit manual and CNC machines where a positive stop is required. The tool handles slotting, profiling and facing in steel, cast iron and non-ferrous alloys. It is not for buyers who need coated tools for high-temperature alloys or extended tool life in abrasive composites.

Installation and common issues

The 1/2 in shank with Weldon flat locks into a matching collet or end-mill holder using a set screw; no special fixtures are needed. Ensure the flat seats fully against the screw to prevent pull-out under heavy cuts. Vibration or chatter usually means excessive stick-out or insufficient clamping torque. The tool is not for users who lack a holder that accepts a Weldon flat or who cannot verify run-out at the spindle.

Check your setup before ordering

Confirm the machine spindle accepts a 1/2 in shank and that the holder provides a set-screw flat engagement. Verify the 3 in overall length clears fixtures and workpiece geometry for the intended depth of cut. The 1 in length of cut must match the required slot or pocket depth without multiple passes. This end mill is not for setups limited to smaller shank diameters or holders without a Weldon flat seat.

How it compares

Measured against everything we stock in Utility & Specialty Hand Tools, at today’s prices. Recalculated every night.

Price $65.99
Pricier than about 79% of the 2,474 comparable items (median $23.99).

Specifications

Product
Brand nameMicro 100
Product typeHole, Drill, Bore & Wire Gauges

Questions about this item

How can I confirm the EMS-500-4 carbide end mill is cutting correctly after setup?

Check for a clean square profile on the 1 in length of cut, consistent chip formation, and no chatter marks on the workpiece when using the .5 in diameter cutter.

What comes with the EMS-500-4 end mill and what must be purchased separately?

The box contains the single uncoated carbide end mill with a Weldon flat on the 1/2 in shank; tool holders, collets, coolant, and workpiece material are not included.

Which Micro 100 end mill version should I choose for a .5 in milling diameter and 1 in cut length?

Select the EMS-500-4 model; its specifications match the .5 in milling diameter, 1 in length of cut, 3 in overall length, and 1/2 in shank diameter required.

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