Page 223 - Republic Drill

Expansion Chucking Reamers

High Speed Steel
Expansion reamers are designed to slightly enlarge
holes for proper fit. The expansion feature allows the
reamer to be sharpened repeatedly, then adjusted
to maintain the original size.
List No. 572 – Straight Shank
List No. 574 – Taper Shank REAMERS
S.S. Morse T.S. S.S. Morse T.S.
Size Dec. Flute Overall 572 Taper 574 Size Dec. Flute Overall 572 Taper 574
Equiv. Length Length Equiv. Length Length
Price No. Price Price No. Price
3/16 .1875 3/4 6-1/2 53.46 — — 1-3/16 1.1875 1-3/4 11 126.85 3 145.88
7/32 .2188 3/4 6-1/2 53.46 — — 1-7/32 1.2188 1-3/4 11 141.90 4 161.70
1/4 .2500 3/4 6-1/2 53.46 — — 1-1/4 1.2500 1-7/8 11-1/2 137.90 4 158.62
9/32 .2813 3/4 6-1/2 53.46 — — 1-9/32 1.2813 1-7/8 11-1/2 147.78 — —
5/16 .3125 3/4 6-1/2 53.46 — — 1-5/16 1.3125 1-7/8 11-1/2 143.48 4 165.01
11/32 .3438 3/4 6-3/4 53.46 — — 1-3/8 1.3750 2 12 148.50 4 171.41
3/8 .3750 3/4 7 52.77 1 58.32 1-7/16 1.4375 2 12 154.47 4 177.71
13/32 .4062 3/4 7 53.50 1 60.71 1-1/2 1.5000 2-1/8 12-1/2 160.04 4 184.10
7/16 .4375 7/8 7 54.85 1 63.07 1-9/16 1.5625 2-1/8 12-1/2 173.38 4 184.64
15/32 .4688 7/8 7 56.86 1 65.45 1-5/8 1.6250 2-1/4 13 180.18 4 186.65
1/2 .5000 1 8 58.92 1 67.76 1-11/16 1.6875 2-1/4 13 189.42 4 203.28
17/32 .5312 1 8 60.96 1 70.09 1-3/4 1.7500 2-3/8 13-1/2 197.34 5 213.51
9/16 .5625 1-1/8 8 63.03 1 72.49 1-13/16 1.8125 2-3/8 13-1/2 204.93 5 227.30
19/32 .5938 1-1/8 8 65.07 1 74.84 1-7/8 1.8750 2-1/2 14 216.15 5 236.61
5/8 .6250 1-1/4 9 67.10 2 77.23 1-15/16 1.9375 2-1/2 14 238.26 5 267.96
21/32 .6562 1-1/4 9 69.01 2 79.20 2 2.0000 2-1/2 14 243.54 5 281.82
11/16 .6875 1-1/4 9 70.94 2 81.58 2-1/16 2.0125 2-3/4 14-1/2 — 5 290.07
23/32 .7188 1-1/4 9 72.86 2 81.64 2-1/8 2.1250 2-3/4 14-1/2 350.00 5 350.00
3/4 .7500 1-3/8 9-1/2 74.78 2 86.04 2-3/16 2.1875 2-3/4 14-1/2 — 5 360.00
25/32 .7812 1-3/8 9-1/2 77.55 2 89.19 2-1/4 2.2500 2-3/4 14-1/2 — 5 360.00
13/16 .8125 1-3/8 9-1/2 80.21 2 92.25 2-5/16 2.3125 2-3/4 14-1/2 — 5 360.00
27/32 .8438 1-3/8 9-1/2 82.98 2 95.44 2-3/8 2.3750 3 15 450.00 5 450.00
7/8 .8750 1-1/2 10 85.67 2 98.52 2-7/16 2.4375 3 15 — 5 500.00
29/32 .9062 1-1/2 10 88.47 2 101.77 2-1/2 2.5000 3 15 600.00 5 600.00
15/16 .9375 1-1/2 10 91.19 3 104.92 2-9/16 2.5625 3 16 — 5 630.00
31/32 .9688 1-1/2 10 92.43 3 107.73 2-5/8 2.6250 3 16 650.00 5 650.00
1 1.0000 1-5/8 10-1/2 93.82 3 107.73 2-11/16 2.6875 3 16 — 5 650.00
1-1/32 1.0312 1-5/8 10-1/2 104.78 3 120.45 2-3/4 2.7500 3 16 — 5 685.00
1-1/16 1.0625 1-5/8 10-1/2 104.78 3 120.52 2-13/16 2.8125 3 16 690.00 5 690.00
1-3/32 1.0938 1-3/4 10-1/2 111.54 3 131.34 2-7/8 2.8750 3 16 — 5 710.00
1-1/8 1.1250 1-3/4 11 115.94 3 133.31 2-15/16 2.9375 3 16 750.00 5 750.00
1-5/32 1.1562 1-3/4 11 126.85 3 145.86 3 3.0000 3 16 — 5 800.00
Maximum expansion to 1/2" – approximately .006, to 1" – approximately .010, to 1-1/2" – approximately .012.

Jobbers Reamers
High Speed Steel

For use in all types of materials where a long flute is required.
List No. 578 – Straight Flute
List No. 579 – Spiral Flute Price Each Price Each
Dec. Flute Overall Morse Straight Spiral Dec. Flute Overall Morse Straight Spiral
Size Size
Equiv. Length Length Taper No. 578 579 Equiv. Length Length Taper No. 578 579
1/4 .2500 2 5-3/16 1 36.00 41.40 3/4 .7500 4-3/16 8-3/8 2 67.32 —
9/32 .2812 2 5-3/16 1 37.92 — 25/32 .7812 4-3/16 8-3/8 2 63.78 —
5/16 .3125 2-1/4 5-1/2 1 37.49 43.11 13/16 .8125 4-9/16 8-13/16 2 75.60 86.94
11/32 .3438 2-1/4 5-1/2 1 39.88 — 27/32 .8438 4-7/8 9-13/16 2 68.63 —
3/8 .3750 2-1/2 5-13/16 1 43.37 — 7/8 .8750 4-7/8 9-13/16 2 84.61 —
13/32 .4062 2-1/2 5-13/16 1 45.26 — 15/16 .9375 5-1/8 10 3 89.10 —
7/16 .4375 2-3/4 6-1/8 1 48.97 56.32 1 1.0000 5-7/16 10-3/8 3 96.76 117.45
15/32 .4688 2-3/4 6-1/8 1 45.75 — 1-1/16 1.0625 5-5/8 10-5/8 3 102.93 —
1/2 .5000 3 6-7/16 1 48.97 — 1-1/8 1.1250 5-13/16 10-7/8 3 115.57 —
17/32 .5312 3 6-7/16 1 50.56 — 1-3/16 1.1875 6 11-1/8 3 128.70 —
9/16 .5625 3-1/4 6-3/4 1 55.44 — 1-1/4 1.2500 6-1/8 12-9/16 4 132.00 —
19/32 .5938 3-1/4 6-3/4 1 56.69 — 1-5/16 1.3125 6-1/4 12-11/16 4 138.60 —
5/8 .6250 3-1/2 7-9/16 2 57.76 — 1-3/8 1.3750 6-5/16 12-13/16 4 148.50 —
21/32 .6562 3-1/2 7-9/16 2 61.37 — 1-7/16 1.4375 6-7/16 13 4 185.10 —
11/16 .6875 3-7/8 8 2 67.32 77.42 1-1/2 1.5000 6-1/2 13-1/8 4 163.68 —
23/32 .7188 3-7/8 8 2 55.70 — 1-3/4 1.7500 6-3/4 13-5/8 4 324.72 —
221