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Micro 100 uncoated drill mill 5/16 inch two flute

Micro 100

Micro 100 Drill Mill DM-312-290 5/16 In 2FL Uncoated

SKU CH-P790-BYYG5

Two-flute uncoated carbide drill mill cuts ferrous and non-ferrous materials

  • Product typeDrill Mills
  • Drills and mills ferrous and nonferrous materials
  • Two-flute design enables efficient chip removal
  • Uncoated bright finish suits general-purpose machining
  • 5/16 inch diameter fits standard tool holders

Micro 100 Drill Mill DM-312-290

The Micro 100 Drill Mill DM-312-290 is a solid carbide cutting tool built for machining both ferrous and nonferrous materials. Its two-flute design and bright uncoated finish suit general-purpose milling and drilling tasks in a workshop environment. The 5/16 inch diameter provides a standard size for common tool holders. This accessory targets machinists and fabricators who need a reliable drill mill for mixed-material jobs.

Sustained cutting performance

Under continuous load the uncoated carbide substrate maintains hardness at elevated temperatures generated by prolonged cuts. The two-flute geometry allows adequate chip evacuation to reduce re-cutting and heat buildup during extended operations. Consistent feed rates help preserve edge integrity when working through tougher ferrous alloys. The tool is not suited for high-speed production runs that demand advanced coatings for maximum thermal resistance.

How it compares

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

Price $31.99
Typical for this category: the median of 5,493 items is $27.99.

Specifications

Product
Brand nameMicro 100
Product typeDrill Mills

Questions about this item

Does the Micro 100 DM-312-290 generate much heat during extended milling sessions?

As an uncoated 2-flute carbide drill mill, it runs cooler than coated alternatives when cutting ferrous and nonferrous materials, but heat depends on feed rate and coolant use.

What tool holder or collet do I need for the 5/16 inch shank on this DM-312-290?

Use a standard 5/16 inch collet, end-mill holder or shrink-fit chuck that matches your machine spindle; the shank is a common fractional size.

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