Ruko Step drill HSS TiN in inch dimensions, spiral fluted with cross ground No. 58W990447
Ruko Step drill HSS in inch dimensions, spiral fluted with cross-ground No. 41A143978
Ruko Step drill HSS TiN in inch dimensions, spiral fluted with cross grinding No. 31D326862
Ruko Step drill HSS TiN in inch dimensions, spiral fluted with cross grinding No. 42K614577
Ruko Step drill HSS-Co 5 in inch dimensions, spiral fluted with cross grinding No. 72L028196
Ruko Step drill HSS TiAlN in inch dimensions, spiral fluted with cross grinding No. 42M270370
Ruko Step drill bit HSS spiral fluted with split point no. 0/97D841246