0.377 in diameter tungsten carbide Two Straight coolant hole rods
Specification:
OD 0.377 inch
Inner diameter: 1mm×2pcs
Length 330mm or as required.
Type: Two Straight hole rods.
Application:
With Coolant holes for making cutting tools, such as endmills,
drills, and reamers.
It is suitable for machining common steel, cast iron, stainless
steel, heat‐resistant steel, nickel-based alloys, titanium alloys,
etc. It is recommended for making conventional tools, such as twist
drills, end drills, screw taps, etc.
Tungsten carbide, sometimes called carbide, is harder than
Corrosion-Resistant Tungsten with excellent wear resistance. Use it
to machine long-lasting tools, such as endmills and inserts.
Rods with a coolant hole let coolant flow into tools that need it,
saving you the effort of drilling a hole yourself.
| Outer Diameter mm | TK mm | Inner Diameter mm | Deviation of holes
position≤(mm) a | Length mm |
| OD | TK | Tol. | ID | Tol. | Length | Tol. |
| 4.30 | 1.8 | -0.4/0 | 0.800 | ±0.1 | 0.15 | 330 | 0/+5.0 |
| 5.30 | 2.0 | -0.4/0 | 0.800 | ±0.1 | 0.20 | 330 | 0/+5.0 |
| 6.30 | 3.0 | -0.5/0 | 1.000 | ±0.15 | 0.20 | 330 | 0/+5.0 |
| 7.30 | 3.5 | -0.5/0 | 1.000 | ±0.15 | 0.20 | 330 | 0/+5.0 |
| 8.30 | 4.0 | -0.6/0 | 1.000 | ±0.15 | 0.20 | 330 | 0/+5.0 |
| 9.30 | 4.0 | -0.6/0 | 1.400 | ±0.15 | 0.20 | 330 | 0/+5.0 |
| 10.30 | 5.0 | -0.6/0 | 1.400 | ±0.15 | 0.20 | 330 | 0/+5.0 |
| 11.30 | 5.0 | -0.6/0 | 1.400 | ±0.15 | 0.28 | 330 | 0/+5.0 |
| 12.30 | 6.0 | -0.6/0 | 1.750 | ±0.15 | 0.30 | 330 | 0/+5.0 |
| 13.30 | 6.0 | -0.6/0 | 1.750 | ±0.15 | 0.34 | 330 | 0/+5.0 |
| 14.30 | 7.0 | -0.6/0 | 1.750 | ±0.15 | 0.37 | 330 | 0/+5.0 |
| 15.30 | 8.0 | -0.6/0 | 2.000 | ±0.2 | 0.37 | 330 | 0/+5.0 |
| 16.30 | 8.0 | -0.6/0 | 2.000 | ±0.2 | 0.40 | 330 | 0/+5.0 |
| 17.30 | 9.0 | -0.6/0 | 2.000 | ±0.2 | 0.47 | 330 | 0/+5.0 |
| 18.30 | 9.0 | -0.6/0 | 2.000 | ±0.2 | 0.50 | 330 | 0/+5.0 |
| 19.30 | 9.0 | -0.6/0 | 2.000 | ±0.2 | 0.50 | 330 | 0/+5.0 |
| 20.30 | 10.0 | -0.8/0 | 2.500 | ±0.25 | 0.50 | 330 | 0/+5.0 |
Grades for tungsten carbide rods:
| Classification | K20-K40 | K15-K20 | K20-K40 | K20-K30 | K20 | K20 | K10 | K05-K10 |
| Co % | 10 | 6 | 10 | 12 | 8 | 8 | 7 | 9 |
| WC incl. doping | 90 | 94 | 90 | 88 | 92 | 92 | 93 | 91 |
| Density g/ cm3 | 14.5 | 14.95 | 14.45 | 14.05 | 14.55 | 14.6 | 14.7 | 14.35 |
| Hardness HV30 | 1580 | 1620 | 1620 | 1690 | 1720 | 1790 | 1850 | 1920 |
| Fracture toughness | 11 | 9.9 | 10.6 | 10.4 | 9.5 | 9.6 | 9.6 | 9.3 |
| Transverse rupture strength | 4100 | 3200 | 4100 | 4200 | 3800 | 3700 | 3500 | 3800 |
| Average grain size | 0.7 | 1.2 | 0.6 | 0.5 | 0.7 | 0.6 | 0.7 | 0.2 |
| General tolerance for the h5 finished ground solid carbide rods |
| Diameter | Tolerance μm | | Length | Tolerance | | Straightness | Tolerance | | Circularity | Tolerances |
| ＜3.0 | -4/0 | ＜100.0 | +0.5/+1.0 | ＜4.0 | 0.07 | <3,0 | 2,0 micron |
| 3.0-6.0 | -5/0 | 100.0-165.0 | +1.0/+2.5 | 4.5-5.0 | 0.06 | 3,0- 6,0 | 2,5 micron |
| 6.0-1.0 | -6/0 | 165.0-335.0 | +1.0/+6.0 | 5.5-12 | 0.05 | 6,1-10,0 | 3,0 micron |
| 10.0-18.0 | -8/0 | | ＞12.5 | 0.04 | 10,1-18,0 | 3,5 micron |
| 18.0-30.0 | -9/0 | | 18,1- 30,0 | 4,0 micron |
| 30.0-50.0 | -11/0 | 30,1- 50,0 | 5,0 micron |
Our advantage:
- Finished ground rods h6 and h5 or h4 as required
- Straightness 0.01-0.05
- Circularity 0.01-0.05
- General Roughness Ra 0.2, and Ra 0.02 or Ra 0.05 as required.
