Harvey Tool offers a variety of miniature drilling, reaming, and countersinking tools. Their miniature high performance drills are available in various sizes and coatings for drilling different materials like hardened steels, prehardened steels, aluminum alloys, and more. They also offer miniature reamers in over 250 diameters, combined drill and countersinks, flat bottom counterbores for irregular surfaces, and other specialty tools like deep hole and spotting drills.

1. Drills, Reamers & More!
Harvey Tool’s Holemaking Solutions
Products, Features, & Benefits

2. Miniature High Performance Drills
Hardened Steels
New
Sizes
Available for 3x, 5x, & 8x Hole Depths!
• Optimized for drilling hardened tool, die, and mold steels 46Rc to 68Rc with
outstanding performance in high temperature alloys and difficult-to-machine steels
• 140° point angle
• Specialized flute shape for improved chip evacuation and maximum rigidity
• Double margin design for exceptional hole accuracy and finish
• Latest generation AlTiN Nano coating offers superior hardness and heat resistance
• h6 shank tolerance for shrink fit holders

3. Miniature High Performance Drills
Prehardened Steels
New
Sizes
Available for 3x, 5x, 8x, & 12x Hole Depths!
• Optimized for drilling prehardened medium alloy steels, stainless steels, and tool
steels up to 45Rc
• 140° point angle
• Specialized flute shape for improved chip evacuation and maximum rigidity
• AlTiN coated for improved lubricity and heat resistance
• h6 tolerance for shrink fit holders

4. Miniature High Performance Drills
Aluminum Alloys
New
Sizes
Available for 5x, 8x, & 12x Hole Depths!
• Optimized for drilling aluminum and aluminum alloys with excellent performance in
unfilled plastics, copper, brass, and bronze alloys
• Special 3 flute design to maximize chip flow, hole accuracy, and finish
• 130° point angle
• Polished flute valleys and TiB2 coating prevent built-up edge and extend tool life
• h6 tolerance for shrink fit holders

5. Miniature High Performance Drills
Deep Hole – Coolant Through
Available in 12x & 20x Flute Lengths!
• Drill up to 20x diameter in depth
• Coolant through design for improved chip removal and heat reduction at the drill tip
• 140° point angle
• Specialized flute shape for improved chip evacuation and maximum rigidity
• h6 shank tolerance for shrink fit holders
• AlTiN coated for improved lubricity and heat resistance

6. Miniature Drills
Offered in diameters down to .002"!
• For tools .020˝ and smaller, there is an intermediate neck diameter as pictured above
• 130° drill point
• Stocked in Uncoated and AlTiN coated options

7. Spotting Drills
90° Available in Long Length!
• Thinned web to reduce walking
• Self-centering point geometry
• Available in 2 point styles

8. Miniature Reamers
Over 250 diameters ranging from .0080” to .1890”!
• AlTiN coated for improved lubricity and heat resistance
• 4 straight flutes for through and blind hole applications
• Oversized, common shanks to maintain strength, stiffness, and accuracy
• 45° chamfer angle
• h6 shank tolerance for shrink fit holders

9. Combined Drill & Countersinks
60°, 82°, and 90° included angles - plain type
• 2 flutes
• 118° included tip angle
• Double-ended

10. Flat Bottom Counterbores
For Spot Facing or Counterboring on Irregular Surfaces
• Flat bottom (no dish) design allows spot facing or counterboring on irregular surfaces
• Ideal for castings, rounded parts, concaved, or drafted surfaces
• Can be used for flat bottom reaming or straightening misaligned holes
• Center cutting
• Ground with full cylindrical margin (not side cutting)
• 15° helix, 4 Flutes

11. Flat Bottom Counterbores
Long Reach
Undersized Neck to Avoid Heeling
• Flat bottom (no dish) design allows spot facing or counterboring on irregular surfaces
• Ideal for castings, rounded parts, concaved, or drafted surfaces
• Can be used for flat bottom reaming or straightening misaligned holes
• Center cutting
• Ground with full cylindrical margin (not side cutting)
• 15° helix, 4 flutes