Hand drill

Punch and hand drill (small drill bits, nos. 53 and 57)... 

Pencil paper pliers (round flat and needle nose) wire cutters hammer steel block hand drill vice and eye screw for twisting wire propane torch emery paper copper wire in various gauges from 16 to 24. 

Several workers measured tritium concentrations in profiles of soil moisture. The samples were collected in most cases by means of a hand drill the profile samples were carefully wrapped to avoid drying or exchange with tritium in the air. In the laboratory the soil moisture was extracted by distillation, weighted (to get a moisture profile), and measured for the tritium concentration. 

Thin wahed brass tubes are easily joined togs er with silver solder. Aluminum tubing can t be soldered but is easily held together with screws-because the wall thickness Is sufficient to hold threads. The holes can be drilled and tapped In the conventional manner or simply drilled with a hand drill and threaded with self tapping machine screws. 

Drill motor or hand drill with the following drill bits ... 

Twine heavy (100 yards approx.) 3 wood screws and screwdriver Flat head nail about 1 in. long Hand drill Saw or knife... 

Two acrewa or bolta Thin metal plate Hand drill Screwdriver... 

Wood block I" ( 2 1/2 cm) square by 1 /4" thick Hand drill Connecting wires Soldering iron solder... 

Field samples come from various soiuces. These include a large suite of hand specimens (collections of E.G.N., M.J.B. and A.M.) core from the 200 m Nercmar hole (E.G.N., M.J.B.) through the Manjeri Fm (Fig. 2) core from the 50 m Saskmar 2 hole in the Cheshire Fm shales (P.A., E.G.N.) and hand-drill samples from the... 

Method 2 To complete "with a hand drill and file or Dremel style Moto-Tool (using cut-off disks). Place receiver blank in a vise, being careful not to crush the tube. Then, take a center punch and mark it for a 1/4 drill in each corner of the ports and ends of the slot. 

Thera are some simple things to remember regarding commercial time fuse, rirst It should be stored In a oool dry place. 7t should not be bent at sharp angles or subjected to rough treatment It Is best cut with a sharp knife, using stssdy pressure rather then e "sawing" motion The boles should be drilled with s sharp hand drill slowly. 

Numerous solvent intensive procedures are facilitated by the installation of direct liquid transfer feedthroughs. The assembly illustrated in Figure 5 may be easily installed into either aluminum or Lexan glovebox panels using only an electric hand drill.(9) The primary components consist of a Swagelock(3) 1/8" OD tube to bulkhead male connector and a Whitey(lO) 3-way Ball valve, and all liquid connections employ 1/8" OD Teflon (5) or stainless steel tubing. 

Drilling with a hand drill can be made much easier and more precise by constructing a simple drill jig as shown in... 

Drill Stock—Many kinds arc in market, from eight inches in length upward. Some arc termed hand drills, and the larger ones, used against the breast, are called breast drills. The hand drills can be obtained as low as 60 cents and upward the price of breast drills from two to three dollars. Select a drill stock, if one be required, of a size and strength to suit the work to which it will be used. 

Drilling is a separating process that produces a round hole. The hole may or may not pass aU the way through the material (Figure 16-18). A drill bit is used as the cutting tool. Drill bits may be used in portable electric hand drills or in a machine called a drill press (Figure 16-19). 

FIGURE 16-19 Drill presses make drilling easier and more accurate than hand drilling. 

Figure 2.21. Air-operated tools (a) hand drill (b) screwdriver (c) impact wrench (d) grinder (e) metal shears (f) hammer...

The field and armature windings are connected in series and consequently share the same current. The series motor has the characteristics of a high starting torque but a speed which varies with load. Figure 2.47 shows series motor connections and characteristics. For this reason the motor is only suitable for direct coupling to a load, except in very small motors, such as vacuum cleaners and hand drills, and is ideally suited for applications where the machine must start on load, such as electric trains, cranes and hoists. 

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