Airtek Ltd. — 514-336-3820 — sales@airtekltd.com — www.airtekltd.com

Cutting Tools
Yankee Precision Ground Reamers

Morse Taper Chucking Reamers

morse taper chucking reamer

Straight Flute - Morse Taper Chucking Reamer
List # 436 High Speed Steel

morse taper chucking reamer

Right Hand Flute - Morse Taper Chucking Reamer
List # 437 High Speed Steel

Part number = Series and Decimal Size
example Series 437 Spiral Flute 1-1/16"
Part Number = 437-1.0625

Intermediate sizes available upon request
Diameter Tolerances

Thru 1/2"
+. 0002
- .0000
1/2" to 5/8"
+. 0003
- .0000
5/8" to 1-1/2"
+. 0001
+ .0004
1-1/2" to 2"
+. 0002
+ .0006

Diameter Flute
Length		 # Flutes OAL Morse
Taper
1/4 .2500 1-1/2 6 6 1
9/32 .2812 1-1/2 6 6 1
5/16 .3125 1-1/2 6 6 1
11/32 .3438 1-1/2 6 6 1
3/8 .3750 1-3/4 6 7 1
13/32 .4062 1-3/4 6 7 1
7/16 .4375 1-3/4 6 7 1
15/32 .4688 1-3/4 6 7 1
1/2 .5000 2 6 8 1
17/32 .5312 2 8 8 1
9/16 .5625 2 8 8 1
19/32 .5938 2 8 8 1
5/8 .6250 2-1/4 8 9 2
21/32 .6562 2-1/4 8 9 2
11/16 .6875 2-1/4 8 9 2
23/32 .7188 2-1/4 8 9 2
3/4 .7500 2-1/2 8 9-1/2 2
25/32 .7812 2-1/2 8 9-1/2 2
13/16 .8125 2-1/2 8 9-1/2 2
27/32 .8438 2-1/2 8 9-1/2 2
7/8 .8750 2-5/8 8 10 2
29/32 .9062 2-5/8 8 10 2
15/16 .9375 2-5/8 8-10 10 3
31/32 .9688 2-5/8 8-10 10 3
1 1.0000 2-3/4 8-10 10-1/2 3
1-1/16 1.0625 2-3/4 8-10 10-1/2 3
1-1/8 1.1250 2-7/8 8-10 11 3
1-3/16 1.1875 2-7/8 8-12 11 3
1-1/4 1.2500 3 8-12 11-1/2 4
1-5/16 1.3125 3 8-12 11-1/2 4
1-3/8 1.3750 3-1/4 8-12 12 4
1-7/16 1.4375 3-1/4 8-12 12 4
1-1/2 1.5000 3-1/2 8-12 12-1/2 4
1-9/16 1.5625 3-1/2 10-12 13 4
1-5/8 1.6250 3-1/2 10-12 13 4
1-11/16 1.6875 4 10-12 13-1/2 5
1-3/4 1.7500 4 10-12 13-1/2 5
1-13/16 1.8125 4 10-12 14 5
1-7/8 1.8750 4 10-12 14 5
1-15/16 1.9375 4 10-12 14 5
2 2.0000 4 10-12 14 5

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Spiral Bridge Reamers

List # 485

bridge reamer

Bridge reamers, made of high speed steel, are especially designed for severe service and are particularly adapted for use in structural steel in the building industry, bridge erection, and ship construction.
The cutting end of the flutes is tapered to permit the reamer to enter misaligned holes encountered in structural work. Bridge reamers are commonly used in portable electric or pneumatic machines.

Part number = Series and Decimal Size
example Series 485 Bridge reamer 9/16"
Part Number = 485-.5625

Diameter OAL # Flutes Flute
Length		 Morse
Taper		 Point
Diameter
7/16 .4375 9 5 5-1/8 2 .3050
1/2 .5000 9 5 5-1/8 2 .3125
9/16 .5625 9 5 5-1/8 2 .3430
5/8 .6250 10 5 6-1/8 3 .3750
11/16 .6875 11-3/4 5 7-1/8 3 .3906
3/4 .7500 12 5 7-3/8 3 .5000
13/16 .8125 12 5 7-3/8 3 .5000
7/8 .8750 12 5 7-3/8 3 .5625
15/16 .9375 12 5 7-3/8 3 .6250
1 1.0000 12 5 7-3/8 3 .6875
1-1/16 1.0625 12 5 7-3/8 3 .7500
1-1/8 1.1250 12 5 7-3/8 3 .8125
1-3/16 1.1875 12 5 7-3/8 3 .8750
1-1/4 1.2500 13 5 7-3/8 4 .9375
1-5/16 1.3125 13 5 7-3/8 4 1.0000

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Construction Taper Reamer

List # 495

construction taper reamer

Construction reamers are especially adapted for heavy duty reaming as encountered in the fabrication of structural steel assemblies.
They are tapered at the point to facilitate entering of holes which are out of alignment. They feature a straight shank with a stop collar for safety.

Part number = Series and Decimal Size
example Series 495 Construction reamer 11/16"
Part Number = 495-.6875

Diameter OAL # Flutes Flute
Length		 Point
Diameter		 Shank
Diameter
3/8 .3750 5-1/4 5 3-5/8 .1645 3/8
7/16 .4375 5-1/4 5 3-5/8 .1645 7/16
1/2 .5000 6 5 4-3/8 .2340 1/2
9/16 .5625 6-5/8 5 5 .2920 1/2
5/8 .6250 6-5/8 5 5 .3520 1/2
11/16 .6875 7 5 5-3/8 .4140 1/2
3/4 .7500 7 5 5-3/8 .4770 1/2
13/16 .8125 7-1/4 5 5-5/8 .5400 1/2
7/8 .8750 7-1/4 5 5-5/8 .6020 1/2
15/16 .9375 7-1/4 5 5-5/8 .6450 1/2
1 1.0000 7-1/4 5 5-5/8 .7270 1/2

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Finishing Reamers

finishing reamer

Straight Shank Finishing Reamer
List # 451 High Speed Steel

morse taper finishing reamer

Morse Taper Finishing Reamer
List # 457 High Speed Steel

Part number = Series and Size
example Series 457 Taper Shank #4
Part Number = 457-4

Approximate 5/8" Taper per Foot

List # 451

Taper
Number		 Small end
Diameter		 Large end
Diameter		 Shank
Diameter		 # Flutes Flute
Length		 OAL
0 .2503 .3674 5/16 6 2-1/4 3-3/4
1 .3674 .5170 7/16 6 3 5
2 .5696 .7444 5/8 8 3-1/2 6
3 .7748 .9881 7/8 8 4-1/4 7-1/4
4 1.0167 1.2893 1-1/8 8 5-1/4 8-1/2
5 1.4717 1.8005 1-1/2 10 6-1/4 9-3/4

List # 457

Taper
Number		 Small end
Diameter		 Large end
Diameter		 Morse
Taper		 # Flutes Flute
Length		 OAL
0 .2503 .3674 0 6 2-1/4 5-11/32
1 .3674 .5170 1 6 3 6-5/16
2 .5696 .7444 2 8 3-1/2 7-3/8
3 .7748 .9881 3 8 4-1/4 8-7/8
4 1.0167 1.2893 4 8 5-1/4 10-7/8
5 1.4717 1.8005 5 10 6-1/4 13-1/8

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Brown and Sharpe Taper Finishing Reamers

brown and sharpe taper reamer

Straight Shank Taper Reamer
List # 496 High Speed Steel

Part number = Series and Size
example Series 496 Brown and Sharpe #9
Part Number = 496-9

Approximate 1/2" Taper per Foot

Taper
Number		 Small end
Diameter		 Large end
Diameter		 Shank
Diameter		 # Flutes Flute
Length		 OAL
1 .1974 .3176 9/32 6 2-7/8 4-3/4
2 .2474 .3781 11/32 6 3-1/8 5-1/8
3 .3099 .4510 13/32 6 3-3/8 5-1/2
4 .3474 .5017 7/16 6 3-11/16 5-7/8
5 .4474 .6145 9/16 6 4 6-3/8
6 .4974 .6808 5/8 8 4-3/8 6-7/8
7 .5974 .8011 3/4 8 4-7/8 7-1/2
8 .7474 .9770 13/16 8 5-1/2 8-1/8
9 .8974 1.153 1 8 6-1/8 8-7/8
10 1.0420 1.3376 1-1/8 8 6-7/8 9-3/4

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Due to the fact that we are continuously improving our products, the descriptions, illustrations,
specifications,dimensions, and part numbers are subject to change without notice.
Every effort has been made to have the information on this site error free, we can not be responsible for errors and or omissions.


Airtek (1990) Ltée, 5750 Donahue St., Montreal, Qc, Canada, H4S 1C1
Tel: 514-336-3820