Twist drill bits Morse cone shank for steel
Twist drill bits Morse cone shank
For general steel, and alloy, iron, stainless steel of which hardness less than 35HRC. Morse cone shank
Advantages:
1. Made of high cobalt HSS, which enable the drill to have good red rigidity and good wear resistance
2, The transverse edge angle is well ground so that the cutting resistance is small, and centering is good.
3. Wide groove makes sufficient cooling and good chip removal, and the large helical angle cutting is sharp.
4, Morse cone shank, fixed with Morse standard guide sleeve.
The standard size can be available from stock.
Size list:
d(h8) | L | L1 | Morse taper | d(h8) | L | L1 | Morse taper |
5.00 | 141 | 52 | 1 | 20.50 | 243 | 145 | 2 |
5.30 | 20.75 | ||||||
5.40 | 148 | 57 | 20.90 | ||||
5.80 | 21.00 | ||||||
6.00 | 21.25 | 248 | 150 | ||||
6.10 | 156 | 63 | 21.50 | ||||
6.70 | 21.75 | ||||||
6.80 | 164 | 69 | 21.90 | ||||
7.00 | 22.00 | ||||||
7.50 | 22.25 | ||||||
7.80 | 172 | 75 | 22.50 | 253 | 155 | ||
8.30 | 22.75 | ||||||
8.40 | 167 | 75 | 22.90 | ||||
8.50 | 23.00 | ||||||
8.60 | 175 | 81 | 23.10 | 276 | 155 | 3 | |
9.00 | 23.25 | ||||||
9.50 | 23.50 | ||||||
9.60 | 183 | 87 | 23.75 | 281 | 160 | ||
9.70 | 24.00 | ||||||
9.80 | 24.25 | ||||||
10.00 | 24.50 | ||||||
10.20 | 24.75 | ||||||
10.70 | 24.90 | ||||||
10.80 | 175 | 94 | 25.00 | ||||
11.00 | 25.25 | 286 | 165 | ||||
11.20 | 25.50 | ||||||
11.50 | 25.75 | ||||||
11.80 | 25.90 | ||||||
11.90 | 182 | 101 | 26.00 | ||||
12.00 | 26.25 | ||||||
12.20 | 26.50 | ||||||
12.50 | 26.75 | 291 | 170 | ||||
12.80 | 26.90 | ||||||
12.90 | 27.00 | ||||||
13.00 | 27.25 | ||||||
13.20 | 27.50 | ||||||
13.50 | 189 | 108 | 2 | 27.75 | |||
13.80 | 28.00 | ||||||
13.90 | 28.25 | 296 | 175 | ||||
14.00 | 28.50 | ||||||
14.50 | 212 | 114 | 28.75 | ||||
14.75 | 28.90 | ||||||
14.90 | 29.00 | ||||||
15.00 | 29.25 | ||||||
15.25 | 218 | 120 | 29.50 | ||||
15.50 | 29.75 | ||||||
15.60 | 29.90 | ||||||
15.75 | 30.00 | ||||||
16.00 | 30.25 | 301 | 180 | ||||
16.10 | 223 | 125 | 30.50 | ||||
16.25 | 30.75 | ||||||
16.50 | 30.90 | ||||||
16.75 | 31.00 | ||||||
16.90 | 31.25 | ||||||
17.00 | 31.50 | ||||||
17.25 | 228 | 130 | 31.75 | 306 | 185 | ||
17.50 | 32.00 | 334 | 185 | 4 | |||
17.75 | |||||||
17.90 | |||||||
18.00 | |||||||
18.25 | 233 | 135 | |||||
18.50 | |||||||
18.75 | |||||||
18.90 | |||||||
19.00 | |||||||
19.25 | 238 | 140 | |||||
19.50 | |||||||
19.75 | |||||||
19.90 | |||||||
20.00 | |||||||
20.25 | 243 | 145 |