105750 PREMUS, HSS for core hole centering cylindrical shank

Step drill PREMUS, HSS for core hole centering cylindrical shank

- HSS step drill with cylindrical shank, flat and cooling grooves

- Form D

- Point angle 118°

- Countersink angle 90°/60°

- Centering angle 60°

Use 105700:

For core hole centering. Simultaneous, precise alignment of centering holes, entrance for the tap and thread core hole.

Version 105750:

- HSS, for core hole centering DIN 332 sheet 2

- Form D

- Point angle 118°

- Countersink angle 90°/60°

- Form D for centering holes 60°

Use 105750:

Simultaneous, precise alignment of centering holes, entrance for the tap and thread core hole.

Technical characteristics:

• [A11] Cutting diameter, min. mm: 5.00
• [A12] Cutting diameter, max. mm: 6.4
• [A3/B2/B4] Usable length mm: 18.9
• [B1] Step length, first step: 16.00
• [B3/B4/B5] Total length mm: 71
• [B6] Chip flute length mm: 33
• [C3] Mounting diameter, machine side mm: 12.5
• Distance step: 18.90
• Mounting form, machine side: cylindrical shank
• Coating [H5/COATN]: uncoated
• DIN standard: factory standard
• f mm/rev: 0.040-0.063
• for thread: M6
• Coolant leak [H22/CXSC]: false
• Material: HSS
• Countersink angle: 90
• Point angle: 118