1) Product:
Multi-purpose drill bit made with s specific drill geometry with 130 degrees of carbide tip
resharpenable carbide for the purpose of repeated use
Metric sizes: 3-25mm
Inch size: 1/8" - 1"
2)Picture of multi-purpose drill bit
3)Metric sizes of multi-purpose drill bits
| Metric | Total Length | Shank |
| 3mm | 70mm | Straight |
| 4mm | 83mm | Straight |
| 5mm | 89mm | Straight |
| 6mm | 108mm | Straight |
| 7mm | 111mm | Straight |
| 8mm | 114mm | Straight |
| 9mm | 127mm | Straight |
| 10mm | 160mm | Straight |
| 11mm | 160mm | Straight |
| 12mm | 160mm | 9.52mm |
| 13mm | 160mm | 9.52mm |
| 14mm | 160mm | 9.52mm |
| 16mm | 160mm | 9.52mm |
| 18mm | 160mm | 9.52mm |
| 20mm | 160mm | 9.52mm |
| 22mm | 160mm | 12.7mm |
| 4)Inch sizes for multi-purpose drill bits | ||
| Inch | Total Length | Shank |
| 3/32" | 2-3/4" | Straight |
| 1/8" | 2-3/4" | Straight |
| 5/32" | 3-1/4" | Straight |
| 3/16" | 3-1/2" | Straight |
| 7/32" | 3-3/4" | Straight |
| 1/4" | 4-1/4" | Straight |
| 9/32" | 4-3/8" | Straight |
| 5/16" | 4-1/2" | Straight |
| 11/32" | 5" | Straight |
| 3/8" | 5-15/16" | Straight |
| 13/32" | 6-1/4" | Straight |
| 7/16" | 6-1/4" | Straight |
| 15/32" | 6-1/4" | 3/8" |
| 1/2" | 6-1/4" | 3/8" |
| 9/16" | 6-1/4" | 3/8" |
| 5/8" | 6-1/4" | 3/8" |
| 3/4" | 6-1/4" | 3/8" |
| 7/8" | 6-1/4" | 1/2" |
5) Drilling Instruction
Please follow the speed and technique instructions below
Hardened Steel and Iron 2000—4000 RPM (Lubricant)
Masonry/Concrete 2000—4000 RPM (Percussion)
Stainless Steel 1500—2500 RPM (Coolant)
Glass/Tile/Granite 300—600 RPM
Plastic and Laminates 300—600 RPM
Solid Surface Materials 300—600 RPM
Wood and Composite 500—1000 RPM
