





ZL-QH20 vacuum brazed core drill bits are mainly used for drilling of granite, marble, engineering stone, concrete, brick, etc. The desired shape can be achieved by several drilling.
(For 3cm slab, 8-12 s/hole)
Advantage:
1. Sharp and durable
2. Wet/dry use
3. Fast drilling
Product code: ZL-QH20
Specification: D32 D35
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