- Description
The ladder of its unique structure, a bit can open a variety of specifications of aperture
Do not need to use center punch, compared with the ordinary twist drill is not easy to be broken
Their unique design ensures perfect round holes in sheet metal
Deburring, chamfering, elliptic hole enlargement, twist drill, the function of them was unable, but it is possible
The use of tools: drill, bench drill. Work while water cooling, can effectively extend the service life of drill bit, recommend drilling rate of 250-250 RPM
Do not need to use center punch, compared with the ordinary twist drill is not easy to be broken
Their unique design ensures perfect round holes in sheet metal
Deburring, chamfering, elliptic hole enlargement, twist drill, the function of them was unable, but it is possible
The use of tools: drill, bench drill. Work while water cooling, can effectively extend the service life of drill bit, recommend drilling rate of 250-250 RPM
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