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Micro 100 SPD-250-090 Spotting & Centering Drill, 90° Point Angle, 1/4' Dia, 3/4' Flute Length, 1/4' Shank Dia, 2-1/2' OAL, Uncoated

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$41.94

$ 19 .99 $19.99

In Stock

About this item

  • Optimized for spotting and chamfering applications
  • Available in 82 deg, 90 deg, 100 deg, and 120 deg included point angles
  • Can be utilized for countersinking and chamfering existing holes
  • 2 Flutes
  • Solid carbide


Product Description

Micro 100's Holemaking Drills & Combined Drill & Countersinks

Micro 100's Drills offering includes Spotting & Centering Drills, Spade Drills, and Jobber Length Drills, each engineered to fulfill a unique drilling purpose, ground from solid carbide, fully stocked, and ready to ship same day.

Micro 100 Spade Drills

Spade Drills

Micro 100's "SD" product line, its offering of Spade Drills, is designed for drilling in hardened materials and is an excellent option when requiring holes free of retrack marks in non-ferrous materials.

Micro 100 Spotting & Centering Drill

Spotting & Centering Drills

Available in 82°, 90°, and 120° included point angles, this solid carbide spotting and centering drill is optimized for spotting and chamfering applications, but can be utilized for countersinking, as well.

Micro 100 Jobber Length Drills

Jobber Length Drills

Micro 100's solid carbide Jobber Length Drills, offered in drill diameter sizes from .0312" to .3125", feature a 118° included point, making it an excellent option for general purpose drilling.

Micro 100 Combined Drill & Countersinks

Combined Drill & Countersink

Engineered for predrilling 60° live center holes, and often utilized for countersinking and spot drilling, this double-ended, solid carbide Combined Drill and Countersink is CNC ground in the USA.

Micro 100 Coating Options

Micro 100 coatings are designed to relieve machinists of common machining woes and mishaps. From aiding in chip evacuation while machining gummy materials to adding tool strength and durability to last through aggressive machining operations in difficult-to-machine materials. Our coating offering is designed to help you accomplish success in turning and milling applications. Our coated tools are all fully stocked and ready to ship the same day.

Material General Purpose, ferrous and non-ferrous materials Abrasive non-ferrous alloys such as Brass, Bronze, Copper, and Abrasive Aluminum Alloys Alloy steels, stainless steels, tool steels, titanium, Inconel, nickel, and other aerospace materials Aluminum Alloy Steels, Carbon Steels, Stainless Steels, Hardened Steels, Nickel Alloys, Cast Irons, Titanium, and other High Temperature Alloys
Color Gold Light Gold/Champagne Dark Gray/Black Black/Gray
Structure Mono-layer Mono-layer Multi-layer Nano-composite
Hardness 2170 (21 GPa) 2460 (24 GPa) 3569 (35 GPa) 4079 (40 GPa)
Coefficient of Friction 0.50 0.50 0.60 0.45
Coating Thickness (microns) 2 - 5 2 - 5 2 - 5 1 - 7
Max Working Temp 1,000º F 1,100º F 1,400º F 2,012º F

Micro 100 M Logo


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