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TRAPPIST-1 Orrery
Ferguson's Mechanical Paradox Orrery
Miniature Inner Planet Orrery
Cometarium
Nearest Stars
Mechanical Paradox Demonstrator
Napier's Bones
Genaille Lucas Calculating Rulers
Machinist's Clock
ThinkWeights
Lever Paradox
HP-01 Battery Tool
AWG Copper Wire Properties
Center Drill Dimensions
Drill Size & Decimal Equivalents
Imperial Tap Chart
Keyway Dimensions
Melting Points
Metric Tap Chart
O-Ring Sizes
Pipe Threads
Screw Extractors
Sheet Metal Gauges & Weights
Socket Head Cap Screws
Taper Calculations
Taper Pins
Taper Shank Dimensions
Washer Sizes
Wire Gauges
Wood Screw Dimensions
Wood Screws
Screw Size
Body Diameter
Shank Pilot Hole
Softwood Pilot Hole
Hardwood Pilot Hole
0
0.06
1/16
1/64
1/32
1
0.073
5/64
1/32
1/32
2
0.086
3/32
1/32
3/64
3
0.099
7/64
3/64
1/16
4
0.112
7/64
3/64
1/16
5
0.125
1/8
1/16
5/64
6
0.138
9/64
1/16
5/64
7
0.151
5/32
1/16
3/32
8
0.164
11/64
5/64
3/32
9
0.177
3/16
5/64
7/64
10
0.19
3/16
3/32
7/64
11
0.203
13/64
3/32
1/8
12
0.216
7/32
7/64
1/8
14
0.242
1/4
7/64
9/64
16
0.268
17/64
9/64
5/32
18
0.294
19/64
9/64
3/16
20
0.32
21/64
11/64
13/64
24
0.372
3/8
3/16
7/32
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