Black Finish Jobber Drills (also called blue finish) achieve their distinctive colour by steam tempering, a thermal process resulting in a porous tool coating. This surface helps to keep lubricant on the tool, particularly important on the cutting edges, thus reducing friction and cold welding. The result is increased tool life. Black finish tools are generally recommended for ferrous applications where the oxide layer aids chip flow and heat dissipation.
Black Finish Jobber Drills (also called blue finish) achieve their distinctive colour by steam tempering, a thermal process resulting in a porous tool coating. This surface helps to keep lubricant on the tool, particularly important on the cutting edges, thus reducing friction and cold welding. The result is increased tool life. Black finish tools are generally recommended for ferrous applications where the oxide layer aids chip flow and heat dissipation.
in 1 offers
The lowest price for Bordo 7.3mm Black Knight M2 HSS Jobber Drill 2003-7.30 by Autoelec right now is $134.00 at Industrial Shed.
The all-time low was $5.75 on 26 Jan 2026 — today's price is 2230% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 25 Mar 2026.
Bordo 7.3mm Black Knight M2 HSS Jobber Drill 2003-7.30 by Autoelec
Black Finish Jobber Drills (also called blue finish) achieve their distinctive colour by steam tempering, a thermal process resulting in a porous tool coating. This surface helps to keep lubricant on the tool, particularly important on the cutting edges, thus reducing friction and cold welding. The result is increased tool life. Black finish tools are generally recommended for ferrous applications where the oxide layer aids chip flow and heat dissipation.
Black Finish Jobber Drills (also called blue finish) achieve their distinctive colour by steam tempering, a thermal process resulting in a porous tool coating. This surface helps to keep lubricant on the tool, particularly important on the cutting edges, thus reducing friction and cold welding. The result is increased tool life. Black finish tools are generally recommended for ferrous applications where the oxide layer aids chip flow and heat dissipation.
Last updated at 25/03/2026 03:08:32
Bordo - 7.3mm Black HSS Jobber (Pkt 10) | 2003-7.30
Delivery between 26 Mar – 3 Apr $7.95
| Diameter | 9 mm |
| MTS No | 1 |
| Flute Length | 81 mm |
| Overall Length | 162 mm |
Bordo - 7.3mm Black HSS Jobber (Pkt 10) | 2003-7.30
Delivery between 26 Mar – 3 Apr $7.95
| Diameter | 9 mm |
| MTS No | 1 |
| Flute Length | 81 mm |
| Overall Length | 162 mm |
