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- Challenge Drill Bit 1/8" Teflon
Challenge Drill Bit 1/8" Teflon
Part Number: CHALL1/8
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: 1"
Overall Length: 3-1/8"
List price: $27.08 /EACH
- Challenge Drill Bit 1/8" Steel
- Challenge Drill Bit 5/32" Steel
- Challenge Drill Bit 3/16" Steel
- Challenge Drill Bit 7/32" Steel
- Challenge Drill Bit 1/4" x 2" Steel
- Challenge Drill Bit 1/4" x 2-1/2" Steel
- Challenge Drill Bit 9/32" x 2" Steel
- Challenge Drill Bit 9/32" x 2-1/2" Steel
- Challenge Drill Bit 5/16" x 2" Steel
- Challenge Drill Bit 5/16" x 2-1/2" Steel
- Challenge Drill Bit 11/32" x 2" Steel
- Challenge Drill Bit 3/8" x 2" Steel
- Challenge Drill Bit 3/8" x 2-1/2" Steel
- Challenge Drill Bit 13/32" x 2" Steel
- Challenge Drill Bit 7/16" x 2" Steel
- Challenge Drill Bit 7/16" x 2-1/2" Steel
- Challenge Drill Bit 1/2" x 2" Steel
- Challenge Drill Bit 1/2" x 2-1/2" Steel
- Challenge Drill Bit 9/16" x 2" Steel
- Challenge Drill Bit 9/16" x 2-1/2" Steel
- Challenge Drill Bit 5/32" Teflon
- Challenge Drill Bit 3/16" Teflon
- Challenge Drill Bit 7/32" Teflon
- Challenge Drill Bit 1/4" x 2" Teflon
- Challenge Drill Bit 1/4" x 2-1/2" Teflon
- Challenge Drill Bit 9/32" x 2" Teflon
- Challenge Drill Bit 9/32" x 2-1/2" Teflon
- Challenge Drill Bit 5/16" x 2" Teflon
- Challenge Drill Bit 5/16" x 2-1/2" Teflon
- Challenge Drill Bit 11/32" x 2" Teflon
- Challenge Drill Bit 3/8" x 2" Teflon
- Challenge Drill Bit 3/8" x 2-1/2" Teflon
- Challenge Drill Bit 13/32" x 2" Teflon
- Challenge Drill Bit 7/16" x 2" Teflon
- Challenge Drill Bit 7/16" x 2-1/2" Teflon
- Challenge Drill Bit 1/2" x 2" Teflon
- Challenge Drill Bit 1/2" x 2-1/2" Teflon
- Challenge Drill Bit 9/16" x 2" Teflon
- Challenge Drill Bit 9/16" x 2-1/2" Teflon
- Challenge Fluted Drill Bit 1/4" x 2" Teflon
- Challenge Fluted Drill Bit 1/4" x 2-1/2" Teflon
- Challenge Fluted Drill Bit 5/16" x 2" Teflon
- Challenge Fluted Drill Bit 5/16" x 2-1/2" Teflon
- Challenge Fluted Drill Bit 3/8" x 2" Teflon
- Challenge Fluted Drill Bit 3/8" x 2-1/2" Teflon
- Challenge Fluted Drill Bit 1/2" x 2 Teflon
- Challenge Fluted Drill Bit 1/2" x 2-1/2" Teflon
- Challenge Drill Bit 1/8" Titanium
- Challenge Drill Bit 5/32" Titanium
- Challenge Drill Bit 3/16" Titanium
- Challenge Drill Bit 7/32" Titanium
- Challenge Drill Bit 1/4" x 2" Titanium
- Challenge Drill Bit 1/4" x 2-1/2" Titanium
- Challenge Drill Bit 9/32" x 2" Titanium
- Challenge Drill Bit 9/32" x 2-1/2" Titanium
- Challenge Drill Bit 5/16" x 2" Titanium
- Challenge Drill Bit 5/16" x 2-1/2" Titanium
- Challenge Drill Bit 11/32" x 2" Titanium
- Challenge Drill Bit 3/8" x 2" Titanium
- Challenge Drill Bit 3/8" x 2-1/2" Titanium
- Challenge Drill Bit 13/32" x 2" Titanium
- Challenge Drill Bit 7/16" x 2" Titanium
- Challenge Drill Bit 7/16" x 2-1/2" Titanium
- Challenge Drill Bit 1/2" x 2" Titanium
- Challenge Drill Bit 1/2" x 2-1/2" Titanium
- Challenge Drill Bit 9/16" x 2" Titanium
- Challenge Drill Bit 9/16" x 2-1/2" Titanium
- Availability: Available to Order
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
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 |