Sutton D179S2 21 Piece Viper Plus Jobber Drill Set - HSS
Available
The Sutton D179S2 is a 21-piece set of D179 Viper Plus drills in High Speed Steel (HSS), in a ABS plastic case. The set covers 1/16 – 3/8 in × 1/64 in steps.
Each drill in the set has 30° right-hand helix flutes (R30), a 118° Form C split point, a TiAlN-coated tip and is made to DIN 338.
What is in the set
- 21 drills: 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 11/64, 3/16, 13/64, 7/32, 15/64, 1/4, 17/64, 9/32, 19/64, 5/16, 21/64, 11/32, 23/64, 3/8 in
Drills in this set
Dimensions of each drill in the set, from the individual D179 Viper Plus items of the same sizes.
| Size | Item no. | Flute length l2 (mm) | Overall length l1 (mm) |
|---|---|---|---|
| 1/16 in (1.59 mm) | D179 0159 | 20 | 43 |
| 5/64 in (1.98 mm) | D179 0198 | 24 | 49 |
| 3/32 in (2.38 mm) | D179 0238 | 30 | 57 |
| 7/64 in (2.78 mm) | D179 0278 | 33 | 61 |
| 1/8 in (3.18 mm) | D179 0318 | 36 | 65 |
| 9/64 in (3.57 mm) | D179 0357 | 39 | 70 |
| 5/32 in (3.97 mm) | D179 0397 | 43 | 75 |
| 11/64 in (4.37 mm) | D179 0437 | 47 | 80 |
| 3/16 in (4.76 mm) | D179 0476 | 52 | 86 |
| 13/64 in (5.16 mm) | D179 0516 | 52 | 86 |
| 7/32 in (5.56 mm) | D179 0556 | 57 | 93 |
| 15/64 in (5.95 mm) | D179 0595 | 57 | 93 |
| 1/4 in (6.35 mm) | D179 0635 | 63 | 101 |
| 17/64 in (6.75 mm) | D179 0676 | 69 | 109 |
| 9/32 in (7.14 mm) | D179 0714 | 69 | 109 |
| 19/64 in (7.54 mm) | D179 0754 | 75 | 117 |
| 5/16 in (7.94 mm) | D179 0794 | 75 | 117 |
| 21/64 in (8.33 mm) | D179 0833 | 75 | 117 |
| 11/32 in (8.73 mm) | D179 0873 | 81 | 125 |
| 23/64 in (9.13 mm) | D179 0913 | 81 | 125 |
| 3/8 in (9.52 mm) | D179 0953 | 87 | 133 |
Where this product is used
- General drilling across the materials rated for D179 Viper Plus drills.
- Materials rated Optimal for the D179: non-alloy steel, about 0.15 %C, annealed; non-alloy steel, about 0.45 %C, annealed; non-alloy steel, about 0.45 %C, quenched and tempered (250 HB); non-alloy steel, about 0.75 %C (annealed and quenched and tempered); low-alloy steel (under 5% alloying elements), annealed; low-alloy steel, quenched and tempered (275 to 350 HB); high-alloy and tool steel; grey cast iron; nodular cast iron; and malleable cast iron.
- General-purpose drilling where a split point and coated tip help the drill start and penetrate.
Finish
TiAlN tip. TiAlN has a microhardness of 3300 HV and thermal stability to about 900 °C (1652 °F), and is used for difficult-to-machine materials such as stainless steel and for higher speeds and feeds.
Cutting speeds and feeds
Cutting speeds (Vc) and feed numbers are given for the D179. Speed (rpm) = Vc × 1000 ÷ (π × Ø); treat these as starting values.
| Material (VDI 3323 group) | Rating | Vc (m/min) | Feed no. | Ø6 mm: rpm / feed | Ø10 mm: rpm / feed |
|---|---|---|---|---|---|
| Non-alloy steel, about 0.15 %C, annealed | Optimal | 24 | 5 | 1,270 rpm / 0.125 mm/rev | 765 rpm / 0.19 mm/rev |
| Non-alloy steel, about 0.45 %C, annealed | Optimal | 20 | 5 | 1,060 rpm / 0.125 mm/rev | 635 rpm / 0.19 mm/rev |
| Non-alloy steel, about 0.45 %C, quenched and tempered | Optimal | 18 | 5 | 955 rpm / 0.125 mm/rev | 575 rpm / 0.19 mm/rev |
| Non-alloy steel, about 0.75 %C, annealed | Optimal | 18 | 5 | 955 rpm / 0.125 mm/rev | 575 rpm / 0.19 mm/rev |
| Low-alloy steel (under 5% alloying), annealed | Optimal | 18 | 5 | 955 rpm / 0.125 mm/rev | 575 rpm / 0.19 mm/rev |
| Low-alloy steel, quenched and tempered (275 HB) | Optimal | 18 | 4 | 955 rpm / 0.1 mm/rev | 575 rpm / 0.16 mm/rev |
| High-alloy and tool steel, annealed | Optimal | 12 | 4 | 635 rpm / 0.1 mm/rev | 380 rpm / 0.16 mm/rev |
| Ferritic / martensitic stainless steel | Effective | 10 | 3 | 530 rpm / 0.08 mm/rev | 320 rpm / 0.125 mm/rev |
| Austenitic stainless steel | Effective | 10 | 4 | 530 rpm / 0.1 mm/rev | 320 rpm / 0.16 mm/rev |
| Duplex stainless steel | Effective | 8 | 4 | 425 rpm / 0.1 mm/rev | 255 rpm / 0.16 mm/rev |
| Precipitation-hardening stainless steel | Effective | 10 | 3 | 530 rpm / 0.08 mm/rev | 320 rpm / 0.125 mm/rev |
| Grey cast iron, ferritic / pearlitic | Optimal | 25 | 6 | 1,330 rpm / 0.16 mm/rev | 795 rpm / 0.24 mm/rev |
| Grey cast iron, pearlitic | Effective | 20 | 5 | 1,060 rpm / 0.125 mm/rev | 635 rpm / 0.19 mm/rev |
| Nodular cast iron, ferritic | Optimal | 18 | 6 | 955 rpm / 0.16 mm/rev | 575 rpm / 0.24 mm/rev |
| Malleable cast iron, ferritic | Optimal | 18 | 6 | 955 rpm / 0.16 mm/rev | 575 rpm / 0.24 mm/rev |
| Cast aluminium and magnesium (up to 12% Si), non heat treatable | Effective | 30 | 4 | 1,590 rpm / 0.1 mm/rev | 955 rpm / 0.16 mm/rev |
| Cast aluminium over 12% Si | Effective | 20 | 6 | 1,060 rpm / 0.16 mm/rev | 635 rpm / 0.24 mm/rev |
| Copper alloys, free cutting (Pb > 1%) | Effective | 30 | 4 | 1,590 rpm / 0.1 mm/rev | 955 rpm / 0.16 mm/rev |
| Brass (CuZn, CuSnZn) | Effective | 25 | 4 | 1,330 rpm / 0.1 mm/rev | 795 rpm / 0.16 mm/rev |
| Bronze (CuSn) | Effective | 25 | 4 | 1,330 rpm / 0.1 mm/rev | 795 rpm / 0.16 mm/rev |
| Thermosetting and fibre-reinforced plastics | Effective | 35 | 4 | 1,860 rpm / 0.1 mm/rev | 1,110 rpm / 0.16 mm/rev |
| Chilled cast iron | Effective | 20 | 5 | 1,060 rpm / 0.125 mm/rev | 635 rpm / 0.19 mm/rev |
Key specifications
| Specification | Detail |
|---|---|
| Set number | D179S2 |
| Catalogue code | D179 Viper Plus |
| Pieces | 21 |
| Size range | 1/16 – 3/8 in × 1/64 in rises |
| Case | ABS plastic case |
| Material | High Speed Steel (HSS) |
| Finish | TiAlN tip |
| Flute geometry | 30° right-hand helix (R30) |
| Standard | DIN 338 |
Related drilling products
Individual drills from this range are in the Jobber Drill Bits collection; sets are in the Metric Jobber Drill Sets and Imperial Jobber Drill Sets collections. Our speeds and feeds chart and troubleshooting guide help with speeds and problem solving.
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