Description
Stripped fasteners and gear stall disrupt heavy fabrication shops without high-torque drilling capacity. The Fein 18V ASCM18-4 QMP AS High torque drill delivers four-speed mechanical control with 4000 RPM maximum speed. Peak torque output hits 1150 inch-pounds. Extreme continuous high torque boring in fourth gear overheats the brushless stator and trips electronic protection circuits.
The transmission employs a four-speed solid metal planetary gear reduction pack enclosed in a die-cast aluminum housing. Case-hardened steel gears resist tooth chipping under severe stall loads. High-grade needle roller bearings support the output spindle to eliminate runout during precise metal drilling. The hammer mechanism uses hardened steel ramps to generate high-frequency percussion pulses while composite motor seals shield internal components from abrasive metal shavings and shop grit.
Hardware Performance Matrix Breakdown
Precision metal tapping and deep hole saw drilling demand exact speed selection and rigid construction. Technicians depend on these mechanical hardware features for tough workshop tasks.
- Four-speed solid metal gearbox selects ratios between 400 and 4000 RPM for diverse materials.
- Brushless motor generates 1150 inch-pounds torque to drive large structural wood screws.
- Percussion hammer mechanism produces 32000 blows per minute to drill masonry and soft brick.
- QuickIN chuck system swaps drill chucks, tapping heads, and bit holders without hand tools.
- Electronic torque clutch disengages drive gearing at preset torque levels to protect fastener heads.
- Full metal drill chuck incorporates carbide clamping jaws to prevent bit slippage during stall loads.
- Glass-fiber reinforced housing shields motor magnets from shop drops and chemical exposure.
Dyno Bench Load Telemetry
Rebuilding pneumatic screwdrivers on air test stands demands 22 CFM at 90 PSI dynamic to match this drill torque profile. Motor free speed reaches 4000 RPM in fourth gear while loaded drilling pulls rotation down to 3100 RPM. A standard whip hose creates a 12 PSI dynamic pressure drop at the tool air inlet. Adiabatic exhaust cooling causes a 26 degrees Fahrenheit drop that creates frost on exhaust deflector screens. Breakaway torque hits 95 foot-pounds while sound pressure measures 84 dBA.
Field Service Trade Offs
High reaction torque twists wrists when large hole saws snag structural sheet metal without an extended side handle. Hobbyists with tiny garage air setups or low-power cordless kits should not buy this unit because heavy industrial metal drilling demands strong grip control and continuous motor output.
- Wipe the QuickIN spindle interface clean before latching specialized chuck attachments into place.
- Blow clean dry shop air through motor housing cooling slots to prevent conductive dust buildup.
- Lubricate internal mechanical chuck jaws with thin synthetic oil to prevent abrasive grit seizure.
Commercial Warranty Terms Inventory
This industrial kit includes a 3-Year limited warranty upon product registration on the manufacturer portal. The packaged case holds one four-speed hammer drill, two five-ampere-hour lithium battery packs, one rapid battery charger, one QuickIN metal chuck, one bit holder, one side handle, and an impact-resistant plastic tool chest.