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：K10/HRF10/NRB10Ｚ/NRB10/MR11/PR40/PRA5/NRA61/VRA201/VWA441/VWA431/SKH4C/SKH55A/ASP60C/HSS-Co10.5

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(φ2mm~φ15mm)

 
Superior chip-split measures on small drill bit
A double-head point angle
B Single-sided secondary point angle
C single-sided chip-split groove
D step edge
E enlarge point angle
F deflecting grinding of drill edge


Regrinding drill bit

Regrinding drill bit


Drill bit with arc bladeMain-cutting oflength(L2)
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