Making a Machinist Hammer - Shop Made Tools

Why make one Machinists Hammer when you can make 3? In this video I build 3 Machinist Hammers, each with a different configuration, weight and balance.
Each Machinist Hammer has its own individual feel and personality. So, which is best? Only time will tell.

This Machinist Hammer build is based on the design by Tim Nummy.
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Timestamps:
0:00 Introduction
00:50 Titles
01:00 The Drawing
02:02 Machining a Handle
03:55 Knurling Tables
04:20 Machining the Handle
05:00 Setting up for Knurling
05:35 Knurling
07:54 Finishing & Threading the Handle
08:55 Threading the Handle
10:07 Machining an Aluminium Hammer Head
11:55 Machining a Stainless Steel Hammer Head
16:50 Machining the Brass Insert
19:17 Machining the Copper Inserts
22:40 Machining the Wearalon Inserts
24:24 Machining a stub Mandrel
24:40 Final machining of the Heads and Inserts
25:10 Assembling the Hammers
25:31 Weighing the hammers
26:05 The Balance and views
27:00 End