H7 reamers for through and blind holes
HSC reamers for through holes and blind holes — carbide reamers from the UK, Ø3.97–20.0 mm, H7 tolerance.
Galtona's Reaming range (Round Tool Solutions) covers HSC reamers for through holes and blind holes across a Ø3.97–20.0 mm diameter range, held to H7 tolerance with h6 shank diameter, 6-tooth (Z6) design, and internal coolant supply. HSC DR (type 0606) reamers use a -7° helix for through holes with axial through-coolant. HSC SLR (type 0607) reamers use a 0° helix and 120° point angle with radial through-coolant, built for blind holes. Shanks are supplied to DIN 6535-HA. Part of Galtona's broader round-tool program, which also includes thread milling cutters, carbide drills, multi-step reamers, solid and bore milling cutters, brazed tipped form cutters, TCT milling cutters, TC slug reamers, counter sinks, and HSS sub-land drills.
HSC DR — reamer for through holes, -7° helix
HSC DR — Reamers for Through Holes
6-flute HSC reamers, Ø3.97–20.0 mm, H7 tolerance, helix -7°, through-coolant.
Family 0606. Cutting-edge tolerance d₁ = H7, shank dₐ = h6, helix angle γs = -7°, Z6 (6 teeth), through-coolant, for through holes. Emulsion recommended.
Example designation: 6B0606-03970.H7.0120.0350.R06.HA.B395 — 3.97 mm cutting diameter, working length 120 mm, cutting length 35 mm, DIN6535-HA shank.
Representative sizes across the range — full range available in fine (0.01 mm) increments from 3.97 to 20.0 mm
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| d₁ [mm] | Type, description | dₐ [mm] | d₃ [mm] | l₁ [mm] | l₂ [mm] | l₃ [mm] | Material Master |
|---|---|---|---|---|---|---|---|
| 3.97 | 6B0606-03970.H7.0120.0350.R06.HA.B395 | 6 | 3.7 | 75 | 12 | 35.0 | GRW0606039750 |
| 4.00 | 6B0606-04000.H7.0120.0350.R06.HA.B395 | 6 | 3.8 | 75 | 12 | 35.0 | GRW0606040050 |
| 5.00 | 6B0606-05000.H7.0120.0350.R06.HA.B395 | 6 | 4.7 | 75 | 12 | 35.0 | GRW0606050050 |
| 6.00 | 6B0606-06000.H7.0120.0350.R06.HA.B395 | 6 | 5.6 | 75 | 12 | 35.0 | GRW0606060050 |
| 7.00 | 6B0606-07000.H7.0160.0600.R06.HA.B395 | 8 | 6.6 | 100 | 16 | 60.0 | GRW0606070050 |
| 7.97 | 6B0606-07970.H7.0160.0600.R06.HA.B395 | 8 | 7.5 | 100 | 16 | 60.0 | GRW0606079750 |
| 9.00 | 6B0606-09000.H7.0200.0760.R06.HA.B395 | 10 | 8.5 | 120 | 20 | 76.0 | GRW0606090050 |
| 10.00 | 6B0606-10000.H7.0200.0760.R06.HA.B395 | 10 | 9.4 | 120 | 20 | 76.0 | GRW0606100050 |
| 10.50 | 6B0606-10500.H7.0200.0710.R06.HA.B395 | 12 | 9.9 | 120 | 20 | 71.0 | GRW0606105050 |
| 11.00 | 6B0606-11000.H7.0200.0710.R06.HA.B395 | 12 | 10.3 | 120 | 20 | 71.0 | GRW0606110050 |
| 12.00 | 6B0606-12000.H7.0200.0710.R06.HA.B395 | 12 | 11.3 | 120 | 20 | 71.0 | GRW0606120050 |
| 13.00 | 6B0606-13000.H7.0220.0810.R06.HA.B395 | 14 | 12.2 | 130 | 22 | 81.0 | GRW0606130050 |
| 14.00 | 6B0606-14000.H7.0220.0810.R06.HA.B395 | 14 | 13.2 | 130 | 22 | 81.0 | GRW0606140050 |
| 15.00 | 6B0606-15000.H7.0250.0980.R06.HA.B395 | 16 | 14.1 | 150 | 25 | 98.0 | GRW0606150050 |
| 16.00 | 6B0606-16000.H7.0250.0980.R06.HA.B395 | 16 | 15.0 | 150 | 25 | 98.0 | GRW0606160050 |
| 17.00 | 6B0606-17000.H7.0250.0980.R06.HA.B395 | 18 | 16.0 | 150 | 25 | 98.0 | GRW0606170050 |
| 18.00 | 6B0606-18000.H7.0250.0980.R06.HA.B395 | 18 | 16.9 | 150 | 25 | 98.0 | GRW0606180050 |
| 19.00 | 6B0606-19000.H7.0250.0960.R06.HA.B395 | 20 | 17.9 | 150 | 25 | 96.0 | GRW0606190050 |
| 20.00 | 6B0606-20000.H7.0250.0960.R06.HA.B395 | 20 | 18.8 | 150 | 25 | 96.0 | GRW0606200050 |
Recommended cutting data (vc / fz) by material group — applies to both DR and SLR families
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| Material group | vc [m/min] | fz ≤Ø4 [mm] | fz >Ø4≤Ø8 [mm] | fz >Ø8≤Ø16 [mm] | fz >Ø16≤Ø20 [mm] |
|---|---|---|---|---|---|
| Machining / constructional steel | 100–150 | 0.300 | 0.600 | 1.000 | 1.200 |
| Tool steel, cold working | 60–130 | 0.200 | 0.400 | 0.700 | 0.900 |
| Stainless steel | 20–30 | 0.080 | 0.160 | 0.195 | 0.230 |
| Cast iron (lamellar / spheroidal) | 55–80 | 0.300 | 0.600 | 1.000 | 1.200 |
| Aluminium | 170–200 | 0.300 | 0.600 | 1.000 | 1.200 |
| Copper / brass / bronze | 120–220 | 0.300 | 0.600 | 1.000 | 1.200 |
| Titanium | 30–60 | 0.150–0.200 | 0.250–0.400 | 0.450–0.700 | 0.600–0.900 |