
| (Example) S 16 R | S | T | U | P | R 11 03 - 18 | ||||||
| ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ | ⑪ |
① Shank ⑨ Insert cutting ⑪ Minimum
③ Shank length ⑤ Insert shape ⑦ Relief angle
material edge length bore diameter
Chart 1 Chart 3 Chart 5 Chart 7 mm mm
| ② Shank | ④ Clamping | ⑩ Insert | |||||
| ⑥ Holder style | ⑧ Feed direction | ||||||
| diameter | system | thickness | |||||
| mm | Chart 4 | Chart 6 | Chart 8 | mm | |||
| * These symbols may be omitted depending on the product. |
(Chart 1) (Chart 3) (Chart 4)
① Shank material ③ Shank length ④ Clamping system
S Steel shank Symbol Length (mm) Symbol Length (mm) Symbol Length (mm) Symbol Clamp type Mechanism example Symbol Clamp type Mechanism example
| A | Steel shank with oil hole | F | 80 | M | 150 | T | 300 | |
| B | Steel shank with vibration | G | 90 | N | 160 | U | 350 | Top Clamp |
control mechanism C Top Clamp M +
| D | Steel shank with oil hole and | H | 100 | P | 170 | V | 400 | ||
| vibration control mechanism | Pin Lock | ||||||||
| C | Carbide shank | J | 110 | Q | 180 | W | 450 | ||
| E | E | Carbide shank with oil hole | K | 125 | R | 200 | |||
| L | 140 | S | 250 | Lever Lock |
| D | Double Clamp | P | (Two-side | ||
| (Chart 8) | constrained) | ||||
| ⑧ Feed direction |
Symbol Right hand Symbol Left hand
E + Pin Lock S
Screw Lock (supported by 1 lathe) R L
(Chart 5) (Chart 6) (Chart 7)
⑤ Insert shape ⑥ Holder style (The part marked with -- indicates the main cutting edge) ⑦ Relief angle
| Symbol | Insert shape | Symbol | Insert shape Symbol | Shape | Offset Symbol | Shape | Offset | Symbol | Relief angle | |||
| A | Parallelogram | M | Diamond | A | N | A | 3 | |||||
| 85° | 86° | No | No | |||||||||
| 85 angle | 86 angle | 90° | 63° | |||||||||
| B | Parallelogram | O | B | Q | B | |||||||
| 82° | Octagonal | No | 107.5° | Yes | 5 | |||||||
| 82 angle | 75° | |||||||||||
| C | Diamond | P | D | R | C | 7 | ||||||
| 80° | Pentagonal | No | Yes | |||||||||
| 80 angle | 45° | 75° | ||||||||||
| D | Diamond | R | E | S | D | 15 | ||||||
| 55° | Round | No | Yes | |||||||||
| 55 angle | 60° | 45° | ||||||||||
| E | Diamond | S | F | T | E | |||||||
| 75° | Square | 90° | Yes | Yes | 20 | |||||||
| 75 angle | 60° | |||||||||||
| F | Diamond | T | G | U | F | |||||||
| 50° | Triangle | Yes | 93° | Yes | 25 | |||||||
| 50 angle | 90° | |||||||||||
| H | V | Diamond | J | W | G | 30 | ||||||
| Hexagonal | 35° | Yes | 60° | Yes | ||||||||
| 35 angle | 93° | |||||||||||
| K | Parallelogram | W | K | Y | N | 0 | ||||||
| 55° | Trigon | 80° | 75° | Yes | 85° | Yes | ||||||
| 55 angle | ||||||||||||
| L | Rectangular | L | 95° | Yes | Z | Yes | P | 11 |
93° O Special relief angle
ー ( ) ( )
(Example) WB P T 2 12 R H 14
With oil hole Minimum bore BB Steel shank boring bar diameter WB Carbide boring bar
XB Steel shank boring bar with anti-vibration control mechanism
| Symbol | R | L | ||
| Feed direction | Right | Left | ||
| P | Positive Inserts |
| Symbol | 08 | 10 | 12 | 16 | 20 | 25 | |
| Shank diameter (mm) | 8 | 10 | 12 | 16 | 20 | 25 |
| Symbol | T | S | C | |
| Insert shape | Triangle | Square | 80 diamond type |
| Symbol | 5 | 6 | 2 | 0 | 3 | 4 | |
| Insert inscribed circle (mm) | 3.97 | 4.76 | 6.35 | 7.94 | 9.525 | 12.70 |