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Drilling Devices
Drilling Holes in Mains Through
Various Service Fittings

The Skinner-Seal Drilling Device is a high grade Ratchet-Handled machine for drilling a hole in a main through various service fittings.

The machine consists of parts as shown in the sketch at the right. Note that the feed tube on this Drilling Device is adjusted so the lower end is just above the cutter when the cutter is resting on a pipe at the start of the drilling operation. This forms a guide which holds the spindle to it's position and prevents twisting action on the shell cutters.

Cutters are made of an alloy steel, combining toughness and hardness, and have an unusually long life.

To order Drilling Equipment

First identify your service method in the tables below and on the opposite page. Then, on the first line of the table, select the column headed by the size of the top outlet of whatever fitting is used. In the column under that size, you will find the model number of the drill device and adapter required. Beneath that, you will find various cutters listed from which to select the number or size desired. These three items - Drill Device, Adapter, and Cutter make up the drilling equipment you require.

Recommended for non-pressurized installations.
Method "A"
Street Tee in Service
Saddle

Top Thread of Tee(inches) 3/4 1 1-1/4 1-1/2 2
Drill Device No. 4 7 7 7 7
Adapter No. 1 2 3 4 5
Stock Cutter Numbers and Diameters that can be used under this method No. Dia.(in.) No. Dia.(in.) No. Dia.(in.) No. Dia.(in.) No. Dia.(in.)
1 5/8 22 7/8 7 1 19 1-3/16 21 1-7/8
2 1/2 11 3/4 22 7/8 7 1 20 1-3/8
3 3/8 2 1/2 2 1/2 11 3/4 19 1-1/5
4 1/4 4 1/4 4 1/4 2 1/2 7 1

Method "B"
Service Saddle without
Street Tee
Top Thread of Tee(inches) 3/4 1 1-1/4 1-1/2 2
Drill Device No. 4 7 7 7 7
Adapter No. 14 15 16 23 24
Stock Cutter Numbers and Diameters that can be used under this method No. Dia.(in.) No. Dia.(in.) No. Dia.(in.) No. Dia.(in.) No. Dia.(in.)
11 3/4 7 1 19 1-3/16 20 1-3/8 21 1-7/8
1 5/8 11 3/4 7 1 19 1-3/16 20 1-3/8
2 1/2 2 1/2 11 3/4 7 1 19 1-3/16
4 1/4 4 1/4 2 1/2 11 3/4 7 1

Method "C"
Tee or Pipe Nipple
Welded to Main
Top Thread of Tee(inches) 3/4 1 1-1/4 1-1/2 2
Drill Device No. 4 7 7 7 7
Adapter No. 6 7 8 9 10
Stock Cutter Numbers and Diameters that can be used under this method No. Dia.(in.) No. Dia.(in.) No. Dia.(in.) No. Dia.(in.) No. Dia.(in.)
11 3/4 7 1 19 1-3/16 20 1-3/8 21 1-7/8
1 5/8 11 3/4 7 1 7 1 19 1-3/16
2 1/2 2 1/2 11 3/4 11 3/4 7 1
4 1/4 4 1/4 2 1/2 2 1/2 11 3/4

Method "D"
Valve Connected to Main
Top Thread of Tee(inches) 1 1-1/4 1-1/2 2
Drill Device No. 10 10 10 10
Adapter No. 27 26 25 22
Stock Cutter Numbers and Diameters that can be used under this method No. Dia.(in.) No. Dia.(in.) No. Dia.(in.) No. Dia.(in.)
7 1 19 1-3/16 20 1-3/8 21 1-7/8
11 3/4 7 1 19 1-3/16 20 1-3/8
2 1/2 11 3/4 7 1 19 1-3/16
4 1/4 2 1/2 11 3/4 7 1
Cutter Diameter is Limited to the Maximum Full Opening of the Valve

Drilling Devices-Parts List
Decription Model
DD		 Model
MD
Drill Device Complete
089376
#1		 089374
#2A
089376
#4		 089374
#7		 089370
#10
Ratchet Wrench Only
081380 081380
081290 081290 081290
Ratchet Adapter Only
081288 081288
081295 081295 081295
Feed Tube
081303 081307
0891308 081310 081309
Feed Nut
081313 081313
081314 081314 081315
Woodruff Key
- -
081323 081323 081323
Thrust Bearing
081320 081320
081321 081321 081321
Spindle
- -
081381 081381 081381
Allen Wrench
- -
081319 081319 081319
Allen Set Screw
- -
081326 081326 081326
Lock Nut
- -
- 081324 -
Drill
081298 081299
- - -
Optional Parts
Spindle Extension
- - -
#10-2" #10-2" #10-2"
081335 081335 081335
    #3-8"
    081332

Drilling Devices
Drilling Device
Model		 For Saddle Tees
Model with Outlet		 Part Number Weight
No. 1 ST...1/4" IPT 089376 4
No. 2A ST...3/8" IPT 089374 4
WITH RATCHET
Number Part Number Weight
4 089373 15
7 089371 15
10 089370 17
WITHOUT RATCHET
Number Part Number Weight
4 088503 14
7 088486 14
10 088500 16

Cutters
Drill Type Shell Type
Cutter Diameter Part Number
No. 1 5/8" 089367
No. 2 1/2" 089366
No. 3 3/8" 089365
No. 4 1/4" 089364
Cutter Diameter Part Number
No. 7 1" 089363
No. 11 3/4" 089362
No. 19 1-3/16" 089360
No. 20 1-3/8" 089359
 
No. 21 1-7/8" 089358
No. 22 7/8" 089357
No. 23 1-1/4" 089356
No. 26 1-1/2" 089355

Adapters
Adapter Description Part Number
No. 1 3/4" Male X 1/2" Female 089354
No. 2 1" Male X 7/8" Female 089353
No. 3 1-1/4" Male X 7/8" Female 089352
No. 4 1-1/2" Male X 7/8" Female 089351
Adapter Description Part Number
No. 14 3/4" Male X 1/2" Female 089342
No. 15 1" Male X 7/8" Female 089341
No. 16 1-1/4" Male X 7/8" Female 089340
No. 22 2" Male X 1/2" Female 089338
No. 5 2" Male X 7/8" Female 089350
No. 6 3/4" Female X 1/2" Female 089349
No. 7 1" Female X 7/8" Female 089348
No. 8 2-1/4" Female X 7/8" Female 089347
No. 23 1-1/2" Male X 7/8" Female 089337
No. 24 2" Male X 7/8" Female 089336
No. 25 1-1/2" Male X 1/2" Female 089335
No. 26 1/14" Male X 1/2" Female 089334
No. 9 1-1/2" Female X 7/8" Female 089346
No. 10 2" Female X 7/8" Female 089345
No. 27 1" Male X 1/2" Female 089333