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Member postings for david sanderson 3

Here is a list of all the postings david sanderson 3 has made in our forums. Click on a thread name to jump to the thread.

Thread: Correct Drill Bit For 3/8 UNC Tap
23/10/2021 20:46:13

3/8 19 tpi is pipe thread 3/8 unc is 16 tpi and drill 8.25mm

Thread: Face Knurling...
11/04/2021 16:12:06

Jason I'm curious how you machined the hole in that part with the flat


Thread: boring bar
24/02/2021 08:56:27

after reading all the posts and following your links I'm thinking the insert is WBMT thanks to all


23/02/2021 17:27:10

thanks everyone will keep looking

23/02/2021 14:58:13

img_0202.jpgimg_0204.jpghi all does anybody recognise this small boring bar its made by HOYBIDE and is 6mm in diameter I'm trying to find inserts for it but haven't had any luck they are tiny img_0204.jpg

Thread: Elliot 10m
07/02/2021 19:51:31

Sean don't think it matters 3/4 or 1 hp its the rpm mine has a 930 rpm 3/4 hp motor and i think its the original motor

Thread: Thread Pitch Info.
18/05/2019 18:06:46

Alan is it not BSF 1.5 inch 8 tpi same as a boxford spindle nose UNC would normally be 1 inch 8 tpi

Thread: Source of Aluminium Lined Plastic Water Pipe?
10/12/2018 19:26:59

i think the pipe your looking for is called protecta line its used in contaminated ground

Edited By david sanderson 3 on 10/12/2018 19:28:56

Thread: Spiral taps
01/10/2018 13:43:02

hi Steve according to MSCs catalogue red is for high tensile materials yellow is general purpose and blue is for stainless and tool steels hope this helps

Thread: How to gently enlarge a bore (without using a lathe)
04/08/2018 14:39:40

could you drive a wedge into the split and remove it when its back on the post

Thread: Magnetic Radiators
23/03/2018 09:29:21

hi Mike if your radiators are old it could be rust particles going round the system maybe small ones getting past the mag filter a magnet used to stick on the copper pipes on my system before we renewed it due to the rust particles in the water


Thread: Elliot 10 inch shaper motor pulley
06/12/2017 14:56:29

hi David

on my 10 m the vee belt is an old Dawson speedona i can just make out size B 38 code T on the label measuring with callipers its a little over 16mm width probably swollen with age and oil.

the small pulley is cast iron approx 50mm thick and vee ways measure approx 117mm large and 92 small at the largest diameter hope this is of help


Thread: Weird triple flute drills
20/10/2017 16:30:10

i think they are core drills for drilling castings

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