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Compare the Bosch GOL 26 D and GOL 32 D Professional optical levels. This guide covers working range, magnification, accuracy, accessories, tripod and levelling staff requirements, and how to choose the right surveyor setup for construction and outdoor levelling.
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Bosch SDS-max rotary hammers are built for heavy drilling and chiselling in hard and reinforced concrete. They take larger bits than SDS-plus tools and hit much harder, so they handle large-diameter holes, core drilling and demolition work on commercial and structural projects.
How to choose a Bosch SDS-max rotary hammer
- Drilling capacity: the number after the dash in the model name is the maximum drilling diameter in concrete, for example 40mm for the GBH 5-40 D and 45mm for the GBH 8-45 D.
- Power and weight: heavier, higher-wattage models drill faster in hard concrete. Lighter models are easier to use overhead and on walls.
- Chiselling: all SDS-max models here can chisel, which makes them useful for breaking, chasing and light demolition.
- Corded or cordless: the 18V GBH models give SDS-max power on sites without a reliable power supply.
Popular Bosch SDS-max rotary hammers at KHM Megatools
| Model | Power | Max drilling | Good for |
|---|---|---|---|
| GBH 5-40 D | Corded | 40mm | All-round heavy drilling and chiselling |
| GBH 6-42 C | 1300W corded | 42mm | Frequent large-hole drilling |
| GBH 8-45 D | 1500W corded | 45mm | Heavy drilling and demolition in reinforced concrete |
| GBH 8-45 DV | Corded, variable speed | 45mm | Heavy drilling with reduced vibration |
| GBH 18V-36 C | 18V cordless, brushless | 36mm | SDS-max drilling away from power |
| GBH 18V-45 C | 18V cordless, brushless | 45mm | Heavy cordless drilling and chiselling |
SDS-max, SDS-plus or demolition hammer?
For anchor holes and general installation work, a lighter SDS-plus rotary hammer is faster to handle. If you only need to break concrete and don't drill, a Bosch demolition hammer hits harder for its size.
Complete your setup with SDS-max masonry drill bits and chisel bits.
All Bosch tools from KHM Megatools are genuine units covered by the official Bosch warranty in the Philippines.
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