123800 PREMUS, HSS

Pinhole hand reamer PREMUS, HSS

- with cylindrical shank and square, right-hand cutting with taper 1:50

- spiral grooved (approx. 7°) conical cutting edges (1 mm over 50 mm length)

- in spiral grooved and chip-ground quality

Use:

For reaming conical pre-drilled holes by hand. For taper pins DIN 1, DIN 258, DIN 7977 and DIN 7978. The starting hole is best made with pin hole cone drills 101530.

Note:

Pre-drill conically with pin hole cone drill 101530 (or step by step with normal twist drills).

Technical characteristics:

• [A11] Cutting diameter, 1st step, min. mm: 9.90
• [A21/D34] Nominal thread diameter mm: 10
• [A21] Cutting diameter last step, min. mm: 13.40
• [B3/B4/B5] Total length mm: 215
• [C3] Mounting diameter, machine side mm: 12.5
• Cutting shape: B
• Number of cutting edges: 6
• Mounting shape, machine side: Mounting bore 1:50, conical|cylindrical shank, square
• B6 mm: 175
• DIN standard: DIN 9
• helix angle: 7
• Area of ​​application (material to be processed): K (cast iron)|N (non-ferrous metals)|P (steel - cast steel)
• Material: HSS
• Cutting direction: right
• Square dimension: 10