Railhead® Brand Transmitter Housings
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Ditch Witch® is a registered trademark of The Charles Machine Works Inc.
Vermeer® is a registered trademark of Vermeer Manufacturing Company Inc.
American Augers® is a registered trademark of American Augers Inc.
Railhead®, DirectBore®, Endurance® and Incredibit® are registered trademarks of Railhead Underground Products, Inc.
D16x20, D16x20A, D18x22, D20x22
D24x40, D33x44
D36x50, D40x40
3 1/8” DirectBore® Housing (Part# 8430)
3 5/8” DirectBore® Housing (Part# 8460)
3 5/8” DirectBore® Housing (Part# 8460)
2” IF Box
2 3/8” (2.375”) API Reg. Box
THREAD CONNECTIONS
BOLT-ON CONNECTIONS
D7x11, D7x11A, D10x15
Virtually All Thread-On Style Transmitter Housings Require 1 of these 5 Pins.
3 Measurements Of Your Housing Can Determine Which Pin You Need.
2” IF Pin
Small Dia. of Pin = 1 9/16”
Large Dia. of Pin = 2”
Length of Pin = 2 1/2”
Threads per inch = 4
2 3/8” API Reg. Pin
Small Dia. of Pin = 1 7/8”
Large Dia. of Pin = 2 5/8”
Length of Pin = 3”
Threads per inch = 5
2 7/8” API Reg. Pin
Small Dia. of Pin = 2 1/8”
Large Dia. of Pin = 3”
Length of Pin = 3 1/2”
Threads per inch = 5
3 1/2” API Reg. Pin
Small Dia. of Pin = 2 9/16”
Large Dia. of Pin = 3 1/2”
Length of Pin = 3 3/4”
Threads per inch = 5
4 1/2” API Reg. Pin
Small Dia. of Pin = 3 9/16”
Large Dia. of Pin = 4 5/8”
Length of Pin = 4 1/4”
Threads per inch = 5
JT920, JT920L, JT921, JT922, JT1220 Mach 1
Railhead® Specific Pattern
2 3/4” Incredibit® Sonde Housing (Part # 1800)
2 3/8” (2.375”) API Reg. Box
JT1720 Mach 1, JT2020 Mach 1, JT25
3 1/8” dia. DirectBore® Housing (Part# 8430)
2” IF Box
Railhead® Specific Pattern
2 3/4” Incredibit® Sonde Housing (Part # 1810)
2 3/4” RAM Sonde Housing (Part # 3200)
JT1720 Mach 1, JT2020 Mach 1, JT25
Railhead® Specific Pattern
3” Incredibit® Sonde Housing (Part # 2830)
3” Incredibit® Sonde Housing (Part # 3120)
3” Incredibit® Sonde Housing (Part # 3230)
JT2720, JT2720 Mach 1, JT2720 AT,
JT3020 Mach 1, JT30
Railhead® Specific Pattern
3 1/2” Incredibit® Sonde Housing (Part # 1860)
3 1/2” Endurance® Sonde Housing (Part # 2860)
JT2720, JT2720 Mach 1, JT2720 AT,
JT3020 Mach 1, JT30
3 5/8” dia. DirectBore® Housing (Part# 8460)
2 3/8” (2.375”) API Reg. Box
3 1/2” Endurance® Sonde Housing (Part # 3160)
3 1/2” Endurance® Sonde Housing (Part # 3260)
JT4020, JT4020 Mach 1, JT4020 AT
Railhead® Specific Pattern
3 1/2” Incredibit® Sonde Housing (Part # 1860)
3 1/2” Endurance® Sonde Housing (Part # 2860)
3 1/2” Endurance® Sonde Housing (Part # 3160)
3 1/2” Endurance® Sonde Housing (Part # 3260)
Railhead® Specific Pattern
4 1/8” Incredibit® Sonde Housing (Part # 1850)
JT4020, JT4020 Mach 1, JT4020 AT
4” dia. DirectBore® Housing (Part# 8450)
2 7/8” (2.875”) API Reg. Box
3 5/8” dia. DirectBore® Housing (Part# 8460)
2 3/8” (2.375”) API Reg. Box
JT7020, JT8020, JT100
Railhead® Specific Pattern
4 1/8” Incredibit® Sonde Housing (Part # 1850)
Railhead® Specific Pattern
5” Incredibit® Sonde Housing (Part # 1880)
JT7020, JT8020, JT100
4” dia. DirectBore® Housing (Part# 8450)
2 7/8” (2.875”) API Reg. Box
2 3/4” Incredibit® Sonde Housing (Part # 1800)
Railhead® Specific Pattern
2 3/4” RAM Sonde Housing (Part # 3100)
2 3/4” RAM Sonde Housing (Part # 3200)
D16x20, D16x20A, D18x22, D20x22
3” Incredibit® Sonde Housing (Part # 1830)
Railhead® Specific Pattern
3” RAM Sonde Housing (Part # 2830)
3” RAM Sonde Housing (Part # 3120)
Railhead® Specific Pattern
D24x40, D33x44
3 1/2” Incredibit® Sonde Housing (Part # 1860)
Railhead® Specific Pattern
3 1/2” Endurance® Sonde Housing (Part # 2860)
3 1/2” Endurance® Sonde Housing (Part # 3160)
Railhead® Specific Pattern
3 1/2” Endurance® Sonde Housing (Part # 3220)
D36x50, D40x40
3 1/2” Incredibit® Sonde Housing (Part # 1860)
Railhead® Specific Pattern
4 1/8” Incredibit® Sonde Housing (Part # 1850)
3 1/2” Endurance® Sonde Housing (Part # 2860)
Railhead® Specific Pattern
Railhead® Specific Pattern
3 1/2” Endurance® Sonde Housing (Part # 3160)
4” DirectBore® Housing (Part# 8450)
2 7/8” (2.875”) API Reg. Box
3 1/2” Endurance® Sonde Housing (Part # 3260)
D50x100, D80x100, D80x120, D100x120,
D100x140
4 1/8” Incredibit® Sonde Housing (Part # 1850)
Railhead® Specific Pattern
5” Incredibit® Sonde Housing (Part # 1880)
3 1/2” Endurance® Sonde Housing (Part # 2860)
Railhead® Specific Pattern
Railhead® Specific Pattern
3 1/2” Endurance® Sonde Housing (Part # 3160)
3 1/2” Endurance® Sonde Housing (Part # 3260)
D50x100, D80x100, D80x120, D100x120,
D100x140
4” DirectBore® Housing (Part# 8450)
2 7/8” (2.875”) API Reg. Box
For Assistance Determining Your Pin Size or Bolt Pattern
PLEASE CONTACT US
541-430-1926
OREGON OFFICE
580-222-4851
OKLAHOMA OFFICE
FIND YOUR RIG
STEP 1.
FIND YOUR HOUSING
FIND YOUR CONNECTION
STEP 2.
STEP 3.
STEP 4.
USE THE CHART BELOW TO FIND YOUR RAILHEAD® RECOMMENDED TRANSMITTER HOUSING’S REQUIRED PIN OR BOLT CONNECTION FOR ALL DRILLHEAD TOOLS.
NOTE: Use of a crossover sub and other factors may change your required connection. Please verify your required tool joint by using 3 simple measurements (see images below) or feel free to call us any time for connection identification. 580-222-4851
RAILHEAD® BRAND HOUSING IDENTIFICATION
