Đục lỗ Trung Tâm, thiết kế núm, vật liệu kim loại và thép cacbon cứng, chấm tròn, không thấm nước, thích hợp cho máy định vị máy khoan bit, dụng cụ cầm tay, cho lỗ

* brand new and high quality *Threw a small dot on the workpiece, such as a marker (such as center or circumferential line when drilling), or other point of the centerline position, to facilitateProcessing *Suitable for waterproofing hole before drilling steel, aluminum, copper and other materials of positioning the drill to prevent direct deviation from the drilling position will cause sliding or damage to the drill Specification: *Color: Sliver *Material: Carbon steel *Length: 94mm / 3.7in (Approx.) Package Contents: 1pcs * Center punches