Essential details
Quantity(pieces):1
MOQ:1 件起订
G.W:5.4 kg
Lead time:常规 7-15 个工作日
N.W:4.6 kg
Shipping:Ocean Shipping
Specification Number:SD-4
Product Code:SD4
Package Description:Anti-rust treatment + bubble bag + wooden crate; each drill bit individually packaged, suitable for long-distance sea freight
Product Introduction
Premium DTH drill bit — alloy steel body with tungsten carbide buttons. Compatible with Epiroc COP, QL/SD/BR/DHD/HD/NUMA series hammers. OEM/ODM available. Factory direct supply.
Q: How to choose the right DTH bit diameter?
A: Based on your hole size and the matching DTH hammer shank. Common diameters: 77 / 90 / 110 / 130 / 150 / 170 / 200 / 250 mm.
Q: Which shank design to use?
A: Match with hammer model — BR1/BR2/BR3, DHD3.5/DHD340, HD45, QL40/QL50/QL60, SD4/SD5/SD6/SD8, NUMA100/NUMA120, COP32/COP44/COP54.
Q: Bit face shape options?
A: Flat face, convex, concave — selected by rock hardness and drillability.
Q: Are tungsten carbide buttons replaceable?
A: Buttons are press-fit; re-grinding and button re-pressing service is available.
