Porter-Cable 9977 14.4-Volt Ni-Cad 1/2-Inch Cordless Hammer Drill/Driver Kit
by Porter-Cable
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Product Details
Manufacturer: Porter-CableModel: 9977
Product features:
- Compact 14.4-volt cordless hammer drill with 20-position torque control up to 420 in./lbs.
- Dual speed settings: Low speed, 0-450 RPM; High speed, 0-1,400 RPM
- 1/2-inch keyless chuck for quick bit changes
- Interchangeable Grip-to-Fit handle inserts give a custom feel to the grip
- Includes two battery packs, diagnostic charger, storage case, bit, and operating manual
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Description of Porter-Cable 9977 14.4-Volt Ni-Cad 1/2-Inch Cordless Hammer Drill/Driver Kit
The Porter-Cable 9977 14.4-Volt Cordless Hammer Drill kit with 1/2-inch keyless chuck is a compact hammer drill with outstanding power and torque. The 9977 can handle heavy jobs due to its 20-position clutch that lets you dial in the perfect torque level as high as 420 in./lbs. The dual-speed gearbox drives the clutch from 0-450 RPM in low and 0-1,400 RPM in high. The 9977 comes equipped with two rechargeable 2.0 amp-hour battery packs and an advanced diagnostic charger that monitors the batteries while being charged. This kit also comes with a carrying case with on-board storage for bits.Tools and Hardware Reviews of Porter-Cable 9977 14.4-Volt Ni-Cad 1/2-Inch Cordless Hammer Drill/Driver Kit
Customer Review: Additional details
Summary: 5 Stars
I received the drill kit today but haven't had a chance to put it through its paces. I will update this review later with my impressions. The drill seems solidly built, and comes packed in a nice blow-molded plastic case with metal latches. The case is black and has Porter-Cable in bright white "Steal me, I'm expensive!" lettering.
The drill body weighs approx 4.2lbs. With battery pack installed, approx 5.8lbs. The drill measures approx 10-3/4" from the tip of the chuck to the back of the motor shell, and 9-1/2" from the top of the housing to bottom of the battery pack. The pack is the widest part of the assembly and is about 3" wide. The drill is labeled "Assembled in Taiwan." The main label on my drill was a bit scuffed. The included screwdriver bit had come loose during shipping and probably caused the scuffing.
The torque selection ring and gear shift are very stiff but seem to engage positively. When set to hammer mode, the hammer action occurs only when downward pressure is put on the bit. I was expecting a mini jackhammer, but the effect is much more subtle, as if the spindle was riding on detents. There is a separate Drill setting on the ring which bypasses the slip clutch. The ratcheting chuck is made by Rohm and has a very solid metal feel.
The battery release button is somewhat awkward to use. I think it's designed to be released with the pinky finger, but the position and motion are somewhat awkward. The button is flush with the housing to prevent accidental release. The battery slides back to release. The forward/reverse selector can also be placed in the center position to lock the trigger. I suggest doing so before fumbling with the battery or holstering the drill.
I have medium-small hands and found the difference between the 3 GTF inserts to be minor. I selected the medium insert. The inserts are secured by a phillips screw. I think it would be nicer to have inserts with different softness and texture instead. All of the inserts are hard rubber. A sticky gel-like insert might be nice, especially when using the hammer.
The kit includes a threaded side handle which can be installed perpendicularly on either side of the drill just in front of the trigger. The handle is hollow plastic and the threaded portion is zinc-plated metal. The plastic seems a little thin and I would not put my full weight on it during use.
The drill emits a noticeable high pitched noise at low speeds. The manual says that this sound is normal. One feature that my corded drill has is a knob that lets me select the maximum allowable speed. I find it useful and wish that this drill had that feature. The brake works well and stops the chuck as soon as I release the trigger.
The carry case holds the charger, extra battery pack, and side handle. It holds the drill with the pack installed. There is also a compartment for the manual and the GTF inserts. On the lid above the charger, there is a compartment for holding a bit set. The bit compartment has a hinged plastic lid. It is not very deep, but would probably hold one small bit set in its case.
The charger can also charge Porter-Cable 12V batteries. It has keyholes on the back for wall mounting, and a 2-prong power cord. It gets a little warm during charging, but will charge a pack in about an hour. It also has diagnostic features to warn you if the battery is too hot, too cold, or needs replacement. On first use, the charger emitted a strong, plastic odor.
The packs appear to be rebuildable. The top is secured by a set of torx screws, and is available as a spare part. It is a 2 Amp hour NiCd pack. There are 3rd party services that can rebuild it with higher capacity NiMH cells. People also seem to be buying these kits for the packs and chargers and selling the drills as new.
UPDATE: I've been using it to drive Phillips wood screws into aged pine and it is more than powerful enough. In fact, I need to get ACR bits to lessen the stripping of the screw heads. It is a big heavy drill though. I opted for a small tool tote that has a built in drill holster and shoulder strap. It does not have a lanyard loop or anything else that I can easily attach a tether to, and it is too heavy for hanging off the belt and pants.
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