20 Stück 0,9 mm Spiralbohrer Schnellarbeitsstahl Bit HSS-4241
9,32 €
Description：How to Use Twist Drill BitsEnsure the left and right cutting edges of the drill are symmetrical when drilling.Observe the uniformity of the spark while drilling, adjust the pressure in time, and pay attention to the cooling of the bit. NoteMini twist drill bit can NOT be used in the impact drill.To avoid drill bit break,0.9mm bits should be used with pin vise. Specifications:Material : High Speed Steel 4241Type : N Type 118 degree Shank / Cutting Edge Diameter : 0.9mmCutting Edge Length : 12mmTotal Length : 32mmPackage Content: 20pcs x Twist Drill Bit.
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