RUKO SPB-DIN338-HSS-G-σταυρωτό 12,3mm σπειροειδές τρυπάνι

Twist drill bit with a 12.3 mm diameter, ground from solid HSS-G high-speed steel to DIN 338. The cross-ground split point starts precisely and reduces walking on contact.

Advantages

Split point geometry centres the bit without a centre punch and lowers thrust pressure. HSS-G offers a balanced combination of hardness and toughness for general workshop use.

Suitable for

• Steel
• Cast iron
• Non-ferrous metals
• Plastics

Key specifications

• Drill bit type: Twist drill bit
• Material: HSS-G
• Standard: DIN 338
• Diameter: 12.3 mm
• Point type: Split point (cross-ground)
• Point angle: 135°
• Shank type: Cylindrical
• Cutting direction: Right-hand
• Tolerance: h8
• Total length: 151 mm
• Working length: 101 mm
• Surface finish: Bright
• Helix angle: Standard (Type N)
• Manufacturing process: Ground from solid

Recommendations

Use with a cutting fluid on steel for longer tool life. Clamp workpieces securely to prevent rotation.