Structural Steel
All HMT tooling in this category is suitable for common grades of steel.
VersaDrive DrillTaps are designed to drill and tap a hole using one tool. This HMT technical guide covers material suitability, drilling machine selection, material thickness, lubrication, compatible adapters, recommended impact torque, rotary RPM and best practice.
All HMT tooling in this category is suitable for common grades of steel.
VersaDrive DrillTaps are not generally recommended for hardened steel applications.
VersaDrive DrillTaps are suitable for stainless steel when used with the appropriate reduced spindle speed, sufficient torque and suitable cutting lubricant.
All HMT tooling in this category is suitable for non-ferrous materials.
| Machine | Suitable? | Guidance |
|---|---|---|
| Impact Wrench | Yes | Impact wrenches and impact drivers are recommended for this application. Correct torque settings should be used. |
| Rotary Pistol Drill | Yes | DrillTaps in this category are suitable for pistol drill use up to around M20 diameter. Larger diameters may generate high resistance and drill kick-back. |
| Compact Magnet Drill | Generally No | Compact magnet drills are not usually suitable for DrillTapping because they may not have the correct features, such as reversing or variable speed. |
| Large Magnet / Pillar Drill | Yes, where suitable | These units can be suitable where they have variable speed and reversing functions. |
Up to 4 mm
5–12 mm
12–25 mm
Above 25 mm
Recommended for general-purpose drilling applications. SpeedLube is the preferred lubricant for tapping operations.
Recommended for overhead drilling and other applications where liquid lubricant is not suitable.
Recommended for general-purpose drilling applications.
Most tools in this category are suitable for use in impact wrenches and impact drivers. Refer to the appropriate torque guidance.
The VersaDrive Hex shank fits into any standard drill chuck.
VersaDrive extension arbors can be used where additional reach is required.
VersaDrive DrillTaps can be adapted for use in magnetic drills using the appropriate HMT adapter.
VersaDrive DrillTaps can be adapted for use in Morse Taper drills using the appropriate HMT adapter.
Spiral flute DrillTaps do not require a pilot hole.
Heavy-duty DrillTaps require a pilot hole.
When pilot drilling, the pilot hole should be approximately 70% of the required final hole diameter.
Apply firm, steady feed pressure throughout the cut.
Excessive feed pressure can increase heat build-up and reduce tool life.
There is no single fixed number.
Tool life varies considerably depending on the application, material, machine, lubrication, torque, speed and operating technique.
Avoid lateral movement or tilting, as this can damage the tooling.
Do not use excessive feed pressure.
Apply steady feed pressure and maintain a consistent flow of swarf.
When DrillTapping in box section, ensure the tip of the tooling does not contact the opposite side of the box section.
Ensure the DrillTap is inserted squarely into the hole. Poor alignment or an off-centre tap will greatly increase the risk of breakage.
The drilling section requires settings appropriate to the drill diameter, material thickness and material being drilled. The impact torque recommendations vary according to material thickness, while rotary spindle speed varies according to material type.
| Diameter Range | IMPACT TORQUE – Nm | SPINDLE SPEED – ROTARY RPM | ||||||
|---|---|---|---|---|---|---|---|---|
| Sheet up to 4 mm | Plate 5–12 mm | Plate 12–25 mm | Plate over 25 mm | Structural Steel – 30 m/min | Hardened Steel – 8 m/min | Stainless Steel – 12 m/min | Non-Ferrous – 50 m/min | |
| 4–6 mm | 140–160 | 160–180 | 240–280 | 265–310 | 1860–2655 | 210–320 | 850–1215 | 2660–3980 |
| 7–9 mm | 160–295 | 195–360 | 300–520 | 330–570 | 1240–1590 | 140–185 | 565–730 | 1770–2280 |
| 10–12 mm | 320–350 | 395–430 | 580–635 | 640–700 | 930–1120 | 105–130 | 425–510 | 1330–1590 |
| 13–15 mm | 370–375 | 445–455 | 675–690 | 745–760 | 795–860 | 85–100 | 365–390 | 1060–1225 |
| 16–18 mm | 455–580 | 580–720 | 880–1120 | 970–1230 | 620–695 | 70–80 | 285–320 | 885–995 |
| 19–21 mm | 685–685 | 845–845 | 1245–1245 | 1370–1370 | 530–555 | 60–70 | 245–255 | 760–835 |
| 22–24 mm | 720–720 | 900–900 | 1360–1360 | 1500–1500 | 505–505 | 50–60 | 160–175 | 665–725 |
The tapping section requires different torque and spindle-speed settings. Select the appropriate values according to thread size, material thickness and material being tapped.
| Thread Size | IMPACT TORQUE – Nm | SPINDLE SPEED – ROTARY RPM | ||||||
|---|---|---|---|---|---|---|---|---|
| Sheet up to 4 mm | Plate 5–12 mm | Plate 12–25 mm | Plate over 25 mm | Structural Steel – 30 m/min | Hardened Steel – 8 m/min | Stainless Steel – 12 m/min | Non-Ferrous – 50 m/min | |
| M3–M4 | 95–110 | 105–120 | 160–180 | N/A | 730–960 | 610–809 | 490–650 | 2060–2700 |
| M5–M6 | 125–130 | 135–140 | 200–240 | N/A | 485–585 | 405–485 | 325–385 | 1455–1750 |
| M8–M10 | 140–160 | 150–170 | 280–300 | 430–480 | 295–365 | 245–310 | 195–245 | 870–1095 |
| M12–M14 | 170–180 | 185–190 | 320–340 | 512–544 | 210–240 | 175–200 | 140–162 | 625–730 |
| M16–M20 | 190–295 | 200–315 | 360–400 | 576–640 | 145–185 | 125–155 | 100–125 | 440–550 |
| M24–M27 | N/A | N/A | 600–740 | 960–1184 | 105–120 | 90–100 | 75–85 | 330–370 |
| M30–M33 | N/A | N/A | 800–N/A | 1200–1400 | 84–95 | 68–80 | 51–60 | 265–310 |
| M36–M42 | N/A | N/A | N/A–N/A | 1640–2440 | 40–72 | 32–58 | 24–44 | 126–228 |
Explore the VersaDrive Combi DrillTap range to select the appropriate tool for your thread size and application.