High Speed Steel Spiral Flute Hand Reamer

Reamers are precise cutting tools used to enlarge existing holes smoothly and accurately by removing a small amount of metal. Reamer geometry varies widely, which is four or more flutes, spiral or straight, left or right hand cut.Applications: Reamers are used to rough or finish ream predrilled, punched, or die-cast cavities for improved size, roundness, straightness, and surface finish. Though straight flute reamers are still popular, there are many advantages to spiral flute construction. Particularly in smaller sizes, spiral flute reamers can be manufactured more accurately and result in a considerable cost savings.Fractional Size (in.)
Decimal Equiv. (in.)
Length Overall(in.)
Length of Flute (in.)
1/8
.1250
3
1-1/2
9/64
.1406
3-1/4
1-5/8
5/32
.1562
3-1/4
1-5/8
11/64
.1719
3-1/2
1-3/4
3/16
.1875
3-1/2
1-3/4
13/64
.2031
3-3/4
1-7/8
7/32
.2188
3-3/4
1-7/8
15/64
.2344
4
2
1/4
.2500
4
2
17/64
.2656
4-1/4
2-1/8
9/32
.2812
4-1/4
2-1/8
19/64
.2969
4-1/2
2-1/4
5/16
.3125
4-1/2
2-1/4
21/64
.3281
4-3/4
2-3/8
11/32
.3438
4-3/4
2-3/8
23/64
.3594
5
2-1/2
3/8
.3750
5
2-1/2
25/64
.3906
5-1/4
2-5/8
13/32
.4062
5-1/4
2-5/8
27/64
.4219
5-1/2
2-3/4
7/16
.4375
5-1/2
2-3/4
29/64
.4531
5-3/4
2-7/8
15/32
.4688
5-3/4
2-7/8
31/64
.4844
6
3
1/2
.5000
6
3
17/32
.5312
6-1/4
3-1/8
9/16
.5625
6-1/2
3-1/4
19/32
.5938
6-3/4
3-3/8
5/8
.6250
7
3-1/2
21/32
.6562
7-3/8
3-11/16
11/16
.6875
7-3/4
3-7/8
23/32
.7188
8-1/8
4-1/16
3/4
.7500
8-3/8
4-3/16
25/32
.7812
8-3/4
4-3/8
13/16
.8125
9-1/8
4-9/16
27/32
.8438
9-3/8
4-11/16
7/8
.8750
9-3/4
4-7/8
29/32
.9062
10
5
15/16
.9375
10-1/4
5-1/8
31/32
.9688
10-5/8
5-5/16
1
1.0000
10-7/8
5-7/16
1-1/16
1.0625
11-1/4
5-5/8
1-1/8
1.1250
11-5/8
5-13/16
1-3/16
1.1875
12
6
1-1/4
1.2500
12-1/4
6-1/8
1-5/16
1.3125
12-1/2
6-1/4
1-3/8
1.3750
12-5/8
6-5/16
1-7/16
1.4375
12-7/8
6-7/16
1-1/2
1.5000
13
6-1/2