ZL-QH20 Diamond core drill bits are Mainly used for drilling granite, marble, engineering stone, concrete, brick, etc. The desired shape can be achieved by several drills.
(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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