Page 40 - Michigan Drill

Metric Standard Step Drills

High Speed Steel

For Drilling and Counterboring
HOLE MAKING List No. 371M – Jobber Length Length Overall 18.41 Screw Diameter Diameter Length Length Overall 57.22
Cap Screw Clearance Holes

Screw
Flute
Major
Flute
Step
Price
Minor
Major
Minor
Price
Step
Size
Size
Length
Each
Length
Diameter Diameter Length
Each
10.00
2-3/4
.425
3.00
7-5/8
7/8
4
1/4
5-5/8
11/16
.146
3/8
4.00
69.16
5.00
14.00
5/8
3/8
.228
3-5/8
5
.581
3-1/2
7/8
5-1/2*
26.73
93.60
1
1
6*
4
5/8
29.37
4-1/16
5-1/2
1
.659
16.00
.268
7/16
6.00 .189 5/16 1/2 3-3/16 4-1/2 23.62 12.00 .504 3/4 1 5-5/8 7-5/8 128.37
8.00 .346 9/16 3/4 4-13/16 6-5/8 37.29
*Shorter than Jobber Length.
For Drilling 45° Chamfered Holes
To-Be-Tapped (To produce approx. 70% thread)
List No. 370M – Jobber Length
Screw Minor Major Step Flute Overall Price Screw Minor Major Step Flute Overall Price
Size Diameter Diameter Length Length Length Each Size Diameter Diameter Length Length Length Each
3x0.50 .098 5/32 1/2 2 3-1/8 16.38 10x1.50 .335 1/2 1 4-1/2 6 33.54
4x0.70 .130 13/64 1/2 2-7/16 3-5/8 17.64 12x1.75 .406 19/32 1-1/16 5-3/16 7-1/8 66.43
5x0.80 .165 1/4 5/8 2-3/4 4 18.07 14x2.00 .472 11/16 1-1/16 5-5/8 7-5/8 75.83
6x1.00 .197 19/64 11/16 3-1/16 4-3/8 20.86 16x2.00 .551 3/4 1-1/16 5-5/8 7-5/8 84.69
8x1.25 .266 13/32 15/16 3-7/8 5-1/4 25.23
Self Starting Step Drills
High Speed Steel & Titanium Nitride Coated
This drill has an exclusive single radial concave flute
that allows drilling of round holes in thin materials. ● Multiple diameters in one tool
For use in drilling copper, brass, aluminum, thin steels, ● Can be used to deburr holes
plastic, laminates, and drilling hard or abrasive materials. ● Can be used to enlarge holes
Fractional Sizes
High Speed TiN Coated
Size Step No. of Shank Size Tool No. Tool No.
Range Increments Steps Price Price
nds
1/8-1/2 32 13 1/4 SSD1 14.85 SSD1T 19.80
3/16-1/2 16 ths 6 1/4 SSD2 14.85 SSD2T 19.80
1/4-3/4 16 ths 9 3/8 SSD3 26.91 SSD3T 35.78
3/16-7/8 16 ths 12 3/8 SSD4 31.50 SSD4T 42.75
1/4-1-3/8 8 ths 10 1/2 SSD5 56.48 SSD5T 75.38
Metric Sizes
Size Step No. of Shank Size H.S. Price Tin Coated Price
Range Increments Steps Tool No. Tool No.
4mm - 12mm 1mm 9 1/4 SSDM1 14.85 SSDM1T 20.07
4mm - 12mm 2mm 5 1/4 SSDM2 14.90 SSDM2T 20.07
6mm - 18mm 2mm 7 3/8 SSDM3 26.91 SSDM3T 35.78
4mm - 22mm 2mm 10 3/8 SSDM4 31.50 SSDM4T 42.75
Sets
Sizes Description Pcs. Set No. Price
SSD1, SSD2, SSD3 Fractional High Speed Steel Set 3 SSDS 56.70
SSD1T, SSD2T, SSD3T Fractional Tin Coated Set 3 SSDST 75.60
SSDM1, SSDM2, SSDM3 Metric High Speed Steel Set 3 SSDMS 56.70
SSDM1T, SSDM2T, SSDM3T Metric Tin Coated Set 3 SSDMST 75.60
All sets are supplied in wood block
38