Page 146 - Michigan Drill

Cap Screw Counterbores

Solid Pilot – High Speed Steel Price Each Price Each
List No. 508 – Straight Shank
COUNTERBORES Screw Diameter Diameter Diameter Overall Straight Shank Morse Taper Taper Shank
List No. 509 – Taper Shank
Pilot
Cutting
Shank
508
Number
Size
509
Length
3/16
No.5
.141
.221
––
17.55
––
3
No.6
––
––
.242
7/32
3
.150
17.55
No.8
1/4
––
19/64
17.55
3
11/64
––
––
21/64
3-1/2
18.90
5/16
––
No.10
13/64
1/4
23.09
7/16
11/32
5/16
24.21
1/2
26.37
1/2
19/32
28.80
13/32
3/8
7/16 9/32 13/32 3/8 5 5 6 7 21.15 2 2 2 2 22.05
15/32
34.11
11/16
1/2
31.52
1/2 17/32 25/32 1/2 7-1/2 35.91 2 37.80
1/2 17/32 25/32 3/4 7-1/2 35.91 –– ––
1/2 9/16 13/16 3/4 7-1/2 35.91 –– ––
5/8 21/32 31/32 3/4 7-1/2 51.63 2 53.55
5/8 11/16 1 3/4 7-1/2 51.63 2 53.55
3/4 13/16 1-3/16 1 8 73.10 3 76.50
7/8 15/16 1-3/8 1 8 109.90 3 115.20
1 1-1/16 1-9/16 1 10 142.62 3 145.80
Metric Sizes
List No. 508M – Three Flute, Straight Shank
List No. 509M – Three Flute, #2 Morse Taper Shank Price Each Price Each
Screw Pilot Cutting Shank Overall Straight Shank Morse Taper Taper Shank
Size (mm) Diameter (mm) Diameter (mm) Diameter Length 508M Number 509M
3.00 3.40 6.00 7/32 3 17.55 –– ––
4.00 4.50 8.00 5/16 3-1/2 17.55 –– ––
5.00 5.50 10.00 5/16 4-1/2 18.58 –– ––
6.00 6.60 11.00 1/2 5 21.15 –– ––
8.00 9.00 15.00 1/2 6 23.09 –– ––
10.00 11.00 18.00 1/2 7 26.37 –– ––
12.00 14.00 20.00 5/8 7-1/2 31.52 –– ––
14.00 15.00 24.00 3/4 8 35.91 2 39.90
16.00 17.00 26.00 1 9 51.63 2 51.63
20.00 21.00 33.00 1 10 73.10 2 73.10
Sets
Sizes Description Pcs. Set No. Price
No.8, No.10, 1/4, 3/8 Straight Shank 4 508S4 87.77
No.6, No.8, No.10, 1/4, 5/16, 3/8, 1/2 Straight Shank 7 508S7 160.52
1/4, 5/16, 3/8, 1/2, 5/8, 3/4 Straight Shank 6 508S6 231.25
1/4, 5/16, 3/8, 1/2, 5/8, 3/4 Taper Shank 6 509S6 242.91
3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm Metric, Straight Shank 7 508S7M 155.81
All sets are supplied in wood block
Counterbores for Fillister
Head Machine Screws
High Speed Steel
List No. 502 – Two Flute, Straight Shank
Screw Pilot Cutting Shank Overall Price Screw Pilot Cutting Shank Overall Price
Size Diameter Diameter Diameter Length Each Size Diameter Diameter Diameter Length Each
No.0 .059 .110 .109 2-1/2 11.43 No.10 .189 .328 3/8 2-7/8 13.05
No.1 .072 .133 .109 2-1/2 11.43 No.12 .215 .372 3/8 3 14.58
No.2 .085 .155 3/16 2-1/2 10.07 1/4 1/4 13/32 5/16 3-5/8 21.06
No.3 .098 .176 3/16 2-1/2 10.07 5/16 5/16 15/32 3/8 4 21.96
No.4 .111 .198 1/4 2-5/8 10.07 3/8 3/8 19/32 7/16 4-3/8 25.11
No.5 .124 .220 1/4 2-5/8 10.98 7/16 7/16 21/32 1/2 4-3/4 28.35
No.6 .137 .241 1/4 2-5/8 11.43 1/2 1/2 25/32 9/16 5-1/4 30.78
No.8 .163 .285 5/16 2-3/4 12.15 5/8 5/8 .882 5/8 5-1/2 45.00
Sets
Sizes Description Pieces Set No. Price
No.2, No.4, No.6, No.8, No.10 Number Set 5 502SA 56.74
1/4, 5/16, 3/8, 1/2 Fractional Set 4 502SB 98.91
All sets are supplied in wood block
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