Author Topic: MT True-Scale Coupler Instruction Typo  (Read 612 times)

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robert3985

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MT True-Scale Coupler Instruction Typo
« on: February 07, 2017, 11:17:03 PM »
+1
MTL in the instructions for mounting BROWN TRUE-SCALE LONG SHANK COUPLER 001 25 301 (1301-10-B) states "Use a #56 bit and a 00-90 tap."

DO NOT FOLLOW THIS INSTRUCTION!!  It will lead to drilling a hole that is too big to tap with a 00-90 tap, in fact being larger than the tap cutter diameter.

The correct drill to use for a 00-90 tap is a #65 with an o.d. of .035"

Obviously a transposition of numbers, but could cause big headaches if followed.

Cheerio!
Bob Gilmore

« Last Edit: February 08, 2017, 03:02:53 AM by GaryHinshaw »

Chris333

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Re: MT True-Scale Coupler Instruction Typo
« Reply #1 on: February 08, 2017, 12:13:28 AM »
+1
Beavis voice:  Uhhhh you read the instructions, heh heh

Shipsure

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Re: MT True-Scale Coupler Instruction Typo
« Reply #2 on: February 08, 2017, 10:40:25 AM »
+2
MTL in the instructions for mounting BROWN TRUE-SCALE LONG SHANK COUPLER 001 25 301 (1301-10-B) states "Use a #56 bit and a 00-90 tap."

DO NOT FOLLOW THIS INSTRUCTION!!  It will lead to drilling a hole that is too big to tap with a 00-90 tap, in fact being larger than the tap cutter diameter.

The correct drill to use for a 00-90 tap is a #65 with an o.d. of .035"

Obviously a transposition of numbers, but could cause big headaches if followed.

I'll fix that

Cheerio!
Bob Gilmore

robert3985

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Re: MT True-Scale Coupler Instruction Typo
« Reply #3 on: February 08, 2017, 04:15:33 PM »
+1
I'll fix that

Veddy good!  :)

Cheerio!
Bob Gilmore

delamaize

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Re: MT True-Scale Coupler Instruction Typo
« Reply #4 on: February 08, 2017, 06:22:03 PM »
0
Beavis voice:  Uhhhh you read the instructions, heh heh
QFT
Mike

Northern Pacific, Tacoma Division, 4th subdivision "The Prarie Line" (still in planning stages)