Challenge Drill Bit 9/16" x 2" Steel
Double-tap and hold to zoom.
Mouse over the image to zoom.

Challenge Drill Bit 9/16" x 2" Steel

Part Number: STC9/16X2

Challenge paper drills can be used with all standard Challenge machinery, including EH, MS, JF, and HandyDrill series models. Select from a variety of sizes and styles below.

Drilling Capacity: 2"

Overall Length: 3-1/8"

$23.67 /EACH
List price: $23.67 /EACH
    • EACH
  • Availability: In stock

Drill Bit Types

Steel: Uncoated steel drill bits will cover a majority of basic drilling applications - normal paper stock, light to medium weight.

CHT (Teflon): Teflon coated to prevent build-up and increase drill bit life by reducing heat. Works great for medium to heavy weight and coated stocks.

Marvel (Titanium): Titanium coated for maximum durability. Best for hard materials (i.e., plastics, card stock).

Fluted: Flutes line the inside of the drill bit for breaking up paper chips and preventing clogs. Recommended for hard materials like chipboard or card stock. (Note: fluted bits are only available in 1/4", 5/16", 3/8" and 1/2" diameters)

Drill Bit Measurements

Drill Bit Measurements

Drilling Tips

Keep Drills Sharp: Sharpen drills every 4 to 8 hours of use - even more when drilling through hard or abrasive stock. Most breakages occur as a result of dull drills.

Keep Drills Clean: This is especially true when drilling perfect bound books and glue. If the inside of a drill is not cleaned, glue will harden and snap a drill bit upon next use. Use a small brush with solvent to clean the inside of the drill bit. Bits can also be lightly oiled to reduce rust or corrosion when not in use.

Keep Drills Lubricated: Some bits are coated (i.e., Teflon), which will provide lubrication. Consider using a lubricating stick to reduce heat and clogging.

Drill Speed Suggestions

Below is a table of suggested speeds to run your drill machine for optimal performance at each drill bit diameter.

Drill Bit Diameter Speed (RPM)
1/8" 3000
5/32" 2800
3/16" 2700
7/32" 2600
1/4" 2500
9/32" 2200
5/16" 2000
11/32" 1900
3/8" 1700
13/32" 1600
7/16" 1200
1/2" 1000

You May Also Be Interested In

Challenge Handy-Sharp Paper Drill Bit Sharpener
  • $530.00 /EACH
  • List price $530.00 /EACH
  • EACH
  • Availability: In stock
Paper Drill Bit Burr Removal Stone - 4" x 1" x 1/4"
  • $18.85 /EACH
  • List price $18.85 /EACH
  • EACH
  • Availability: In stock
Drill-Ease Lubrication Stick
1x $3.25
12x $2.95
List price $3.25 /EACH
  • EACH
  • Availability: In stock
Drill Blocks Challenge 6" x 1-1/4" x 3/8" Long Grain, 3 Dozen
  • $30.45 /3 DOZ.
  • List price $30.45 /3 DOZ.
  • 3 DOZ.
  • Availability: In stock