To be able to screw the GTS screws into the tree, you have to pre-drill a hole!
What you need to know about your drill machine:
- Do not use your drill machine at its power limit for a long time – otherwise it will break down: signs of this are light smoking, a burnt smell and tortured noises!
- The machine must have an extra handle – there is a great danger of the drill “eating” and twisting your wrist.
- Cordless drills are easier to handle in the tree!
- The drill chuck has to have at least an 11 mm mounting in order to fit our drills.
What drilling power do I need?
Pre-drilling the GTS Allstar:
For hardwood (oak, beech, ash, …) the cordless drill must be a real powerhouse – the ø 36 mm Auger Drill and the ø 74 mm Forstner Drill require enormous power! The most important factor is the torque, the following models, for example, have enough power:
| Hardwood | Softwood | |
| Cordless drill example | Hilti SF 10W-A22 ATC
|
Makita DFF 451 RTJ
|
| Battery power | 22 V / 4 Ah | 18 V / 4 Ah |
| max. force (torque) | 120 Nm | > 80 Nm |
Pre-drilling the GTS Top / Friend / Safety:
A drill / cordless drill of the same power class as “GTS Allstar Softwood” is sufficient here (> 80 Nm, 18 V, 4 Ah).
Where can I get such a cordless drill?
Cordless drill/drivers in this performance class are very expensive. You need to think carefully about whether you really want to buy such a powerhouse and whether you will need it in the long term. The disadvantages of these top screwdrivers are:
- they are very large and very heavy
- too unwieldy for women’s and children’s hands
- not suitable for fine / small jobs
- not suitable for tight places
Often it makes the more sense to borrow a strong drill for the day of the installation of the GTS Tree Screws. Try a carpenter’s / joiner’s / farmer’s / carpenter’s / craftsman’s / assembler’s / neighbor’s shop, a DIY store or a machine hire shop.
I’m sure that if you tell the boys about your treehouse project and show them the GTS screw, they will be happy to let you use the machine for a few days.
