Page 142 - Michigan Drill

3-Flute Countersinks

Center Reamers

High Speed Steel & Cobalt
COUNTERSINKS List No. 480 – 60° H.S. List No. 483 – 100° H.S. Price Each
Engineered to give chatter-free performance.
They are comparatively free-cutting and should be operated at low speeds.

List No. 484 – 120° H.S.
List No. 481 – 82° H.S.
List No. 482 – 90° H.S.
List No. 481C – 82° Cobalt
Price Each
H.S.
H.S.
Shank
Shank
Size
Length
82°
82°
Length
7.62
––
17.82
1/4 Diameter Overall All angles Cobalt Size Diameter Overall All angles Cobalt
7/8
3/16
1-1/2
32.34
3/8
2-3/4
1/4 1/4 1-1/2 7.82 –– 7/8 1/2 2-3/4 32.34 ––
3/8 1/4 1-3/4 9.30 21.24 1 1/2 2-3/4 36.30 83.72
1/2 3/8 2 12.21 26.74 1-1/4 1/2 3 75.90 140.38
5/8 3/8 2-1/4 17.16 39.70 1-1/2 3/4 3 112.20 181.12
3/4 1/2 2-5/8 25.87 52.02 2* 3/4 3-1/4 184.80 320.12
* Not available in 100° and 120° point angle
U.S.A. Sets
H.S. 60° H.S. 82° H.S. 90° Cobalt 82° Cobalt
Sizes Pcs. Price
Set No. Set No. Set No. Set No. Price
1/4, 3/8, 1/2, 5/8, 3/4 5 480S5 481S5 482S5 75.81 481CS5 161.17
1/4, 3/8, 1/2, 5/8, 3/4, 1, 9 480S9 481S9 482S9 489.46 481CS9 890.96
1-1/4, 1-1/2, 2
All sets are supplied in wood block
List No. X480 – 60° H.S.
List No. X481 – 82° H.S. List No. X483 – 100° H.S.
List No. X482 – 90° H.S. List No. X485 – 110° H.S.
Shank Overall Price Shank Overall Price
Size Size
Diameter Length Each Diameter Length Each
1/4 3/16 1-1/2 4.03 7/8 1/2 2-1/2 18.00
5/16 1/4 1-3/4 5.68 1 1/2 2-3/4 19.70
3/8 1/4 1-3/4 5.68 1-1/4 1/2 3-3/8 31.50
1/2 1/4 2 6.29 1-1/4 3/4 3-3/8 31.50
1/2 3/8 2 6.29 1-1/2 1/2 3-1/2 39.00
5/8 3/8 2-1/4 11.29 1-1/2 3/4 3-1/2 39.00
3/4 3/8 2-1/4 15.40 2 1/2 4 74.00
3/4 1/2 2-1/2 15.40 2 3/4 4 74.00
Import Sets
Sizes Pieces H.S. 60° H.S. 82° H.S. 90° Price
Set No.
Set No.
Set No.
1/4 x 3/16, 3/8 x 1/4, 1/2 x 3/8, 5/8 x 3/8, 3/4 x 1/2 5 X480S X481S X482S 46.86
4-Flute Machine Countersinks
High Speed Steel
Four flute countersinks allow for greater chip removal.
List No. 486 – 60° H.S.
List No. 487 – 82° H.S.
List No. 488 – 90° H.S.
Shank
Shank
Size Diameter Overall Price Size Diameter Overall Price
Each
Length
Length
Each
3/8 3/8 3-1/2 23.59 7/8 1/2 4-1/4 42.33
1/2 1/2 3-7/8 25.78 1 1/2 4-1/4 46.84
5/8 1/2 4 29.96 1-1/4 1/2 4-3/8 62.15
3/4 1/2 4-1/8 38.35 1-1/2 1/2 4-1/2 82.59
U.S.A. Sets
60°
90°
82°
Sizes Pieces Set No. Set No. Set No. Price
1/2, 5/8, 3/4, 7/8, 1 5 486S5 487S5 488S5 234.00
All sets are supplied in wood block
140 141