Diamonds & Balls, Burnishing Tools | Shop Made Tools

Burnishing with diamonds and balls, which is best? This is a comprehensive build of a Ball Burnishing Tool and a Diamond Burnishing Tool for the metal lathe.

I will build two roller burnishing tools and one diamond burnishing tool, then compare them and put the results under the microscope – literally!

I use three lathes, The TOOLMASTER, the COLCHESTER and the SHERATON for this project. There is also extensive milling to be done.

This build is inspired by khám phá và sáng tạo from his video.

Full credit and attribution are given to him for the design of the roller tool.
Here is a link to his video:
   • Tự làm bộ lăn bóng siêu đẹp cho máy tiện  

Timestamps:
00:00 Introduction
0030 Titles
00:41 Description
01:27 Burnishing Tool Build
03:00 Cutting the thread
04:30 Boring the hole for the ball
05:05 Machining the cap
06:00 Knurling
06:40 Boring the cap
07:30 Cutting the thread
08:45 Parting off the cap
09:02 Boring and milling the bearing relief
09:57 Milling the shank
11:00 Drilling the hole for the pin
11:50 De-burring the tool
12:40 Making the pin
16:30 Finishing the pinion the Sheraton
16:50 The Diamond Tool Build
17:00 Milling the tool to size
18:45 Chamfering the edges
19:25 Drilling & tapping the retaining threads
21:00 Setting up in the Colchester
22:35 Drilling & reaming the hole for the diamond bar
26:00 Shortening the diamond bar
27:00 Blueing the tools
28:50 Assembling the Ball tools
29:50 Making the stub arbor
31:20 Machining the hole and front of the cap & relieving the thread
32:40 The small tools toolholder
33:00 Machining the test piece
33:40 Using the Ball Burnishing Tool
34:30 Using the Diamond Burnishing Tool
36:25 Visual assessment
37:50 Micrometer assessment
38:25 Conclusions
39:57 End