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Corner Rounding Router Bits with Ball Bearing Guide

4.930
Corner Rounding Router Bits with Ball Bearing Guide
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Price:
$19.39 - $177.15


Amana Tool corner rounding router bits in stock ready to ship today. We have a large selection of industrial quality carbide tipped router bits available.

2 Flute & 4 Flute 
The router bits found on this page include the miniature 3/16" and 1/4" diameter ball bearings for routing tight spaces, the In-Tech™ insert replacement knife series, diamond tipped (PCD) bits as well as the standard 1/2" diameter ball bearings. 

The basic edge-forming bit, the corner-rounding bit rounds an edge to a given radius. The tool is shouldered to cut a fillet. The cut can be used to ease edges, as a simple profile, or as a part of a complex one. Also known as roundover, rounding over, and quarter-round. If a smaller pilot bearing is used, a second shoulder can be produced, in effect making the bit a beading bit.

Tool #DRB-504 is excellent for composite panels, fiberglass, fiberglass PCB board, fiberglass reinforced composites, lightweight composites, custom composite materials, fiber-reinforced urethane and fiber-reinforced structural foam floors.
 

View DXF CNC FileDownload DXF tool file (limited items currently)

View PDF CNC FileDownload PDF tool file (limited items currently)


 

warningRecommendation: The miniature router bits with 3/16" and 1/4" diameter ball bearing guides were designed for use in intricate and delicate projects with or without tight spaces. Do not flush trim material more than half the diameter of the bearing and slow down feed to reduce load. Not guaranteed due to their extremely small size.

Choose Your Corner Rounding Router Bits with Ball Bearing Guide

R D B d Replacement
Bearing
D1 Flute Description L Brand Tool No. image Our Price Ready to Buy?
R D B d Replacement
Bearing
D1 Flute Description L Brand Tool No. image Our Price Ready to Buy?
0.06251/16 0.31255/16 0.31255/16 0.251/4 4777547775 (Mini) 0- 22 0.1875Mini 3/16 Dia. Ball Bearing 1.81251-13/16 0Amana Tool MRR108 $37.50
$28.13
0.06251/16 0.6255/8 0.31255/16 0.251/4 4770647706 0.51/2 22 0- 1.751-3/4 0Amana Tool 49492 $26.80
$20.10
0.06251/16 0.6255/8 0.31255/16 0.251/4 4770647706 0- 22 0- 1.751-3/4 0Timberline 320-06 $27.85
$19.50
0.06251/16 0.6255/8 0.31255/16 0.51/2 4770647706 0.51/2 22 0- 2.252-1/4 0Amana Tool 49494 $26.80
$20.10
0.093753/32 0.3753/8 0.3753/8 0.251/4 4777547775 (Mini) 0- 22 0.1875Mini 3/16 Dia. Ball Bearing 1.81251-13/16 0Amana Tool MR0110 $37.50
$28.13
0.1251/8 0.43757/16 0.3753/8 0.251/4 4777547775 (Mini) 0- 22 0.1875Mini 3/16 Dia. Ball Bearing 1.81251-13/16 0Amana Tool MR0112 $37.50
$28.13
0.1251/8 0.753/4 0.3753/8 0.251/4 4770647706 0.51/2 22 0- 22 0Amana Tool 49496 $28.10
$21.08
0.1251/8 0.753/4 0.3753/8 0.251/4 4770647706 0- 22 0- 22 0Timberline 320-10 $27.70
$19.39
0.1251/8 0.753/4 0.3753/8 0.51/2 4770647706 0.51/2 22 0- 2.31252-5/16 0Amana Tool 49498 $28.10
$21.08
0.1251/8 0.753/4 0.3753/8 0.51/2 4770647706 0- 22 0- 2.31252-5/16 0Timberline 320-46 $28.95
$20.27
0.1251/8 11 0.3753/8 0.251/4 4770647706 0.51/2 22 268Repl. Knives: RCK-268 (2) 2.18752-3/16 0Amana Tool RC-49496 $45.10
$33.83
0.156255/32 0.51/2 0.3753/8 0.251/4 4777547775 (Mini) 0- 22 0.1875Mini 3/16 Dia. Ball Bearing 1.81251-13/16 0Amana Tool MR0114 $38.60
$28.95
0.156255/32 0.753/4 0.3753/8 0.51/2 4770647706 0.51/2 22 0- 2.252-1/4 0Amana Tool 49501 $39.95
$29.81
0.156255/32 0.812513/16 0.3753/8 0.251/4 4770647706 0.51/2 22 0- 22 0Amana Tool 49499 $29.80
$22.35
0.18753/16 0.812513/16 0.3753/8 0.251/4 4770647706 0- 22 0- 22 0Timberline 320-48 $29.05
$20.34
0.18753/16 0.8757/8 0.51/2 0.251/4 4770647706 0.51/2 22 0- 22 0Amana Tool 49500 $29.80
$22.35
0.18753/16 0.8757/8 0.51/2 0.251/4 4770647706 0- 22 0- 22 0Timberline 320-14 $27.90
$19.53
0.18753/16 0.8757/8 0.51/2 0.51/2 4770647706 0.51/2 22 0- 2.43752-7/16 0Amana Tool 49502 $29.80
$22.35
0.18753/16 0.8757/8 0.51/2 0.51/2 4770647706 0- 22 0- 2.43752-7/16 0Timberline 320-50 $27.95
$19.57
0.251/4 0.687511/16 0.4062513/32 0.251/4 4777547775 (Mini) 0.18753/16 22 0.1875Mini 3/16 Dia. Ball Bearing 1.8751-7/8 0Amana Tool MRR112 $45.95
$34.46
0.251/4 0.753/4 0.51/2 0.251/4 4772347723 0.251/4 22 0.251/4 Dia. Ball Bearing 1.8751-7/8 0Amana Tool 49505 $41.60
$31.20
0.251/4 0.8757/8 0.51/2 0.251/4 4770447704 0.3753/8 22 0.3753/8 Dia. Ball Bearing 1.31251-5/16 0Amana Tool 49527 $41.60
$31.20
0.251/4 11 0.51/2 0.251/4 4770647706 0.51/2 22 0- 22 0Amana Tool 49504 $29.90
$22.43
0.251/4 11 0.51/2 0.251/4 4770647706 0- 22 0- 22 0Timberline 320-18 $28.25
$19.78
0.251/4 11 0.51/2 0.251/4 4770647706 0.51/2 22 0Polycrystalline Diamond (PCD) Tipped 2.06252-1/16 0Amana Tool DRB-504 $151.05
$135.95
0.251/4 11 0.51/2 0.251/4 4770647706 0.51/2 22 0Repl. Knives: RCK-272(2) 2.06252-1/16 0Amana Tool RC-49504 $45.75
$34.31
0.251/4 11 0.51/2 0.51/2 4770647706 0.51/2 22 0- 2.43752-7/16 0Amana Tool 49506 $29.90
$22.43
0.251/4 11 0.51/2 0.51/2 4770647706 0- 22 0- 2.43752-7/16 0Timberline 320-22 $28.25
$19.78
0.251/4 1.1251-1/8 0.43757/16 0.51/2 47701**47712 or 47701 0.6255/8 44 0*4 Flute Design 2.56252-9/16 0Amana Tool 49541 $52.95
$39.71
0.31255/16 1.1251-1/8 0.51/2 0.251/4 4770647706 0.51/2 22 0- 2.06252-1/16 0Amana Tool 49508 $29.90
$22.43
0.31255/16 1.1251-1/8 0.51/2 0.251/4 4770647706 0- 22 0- 2.06252-1/16 0Timberline 320-20 $28.15
$19.71
0.31255/16 1.1251-1/8 0.51/2 0.51/2 4770647706 0.51/2 22 0- 2.43752-7/16 0Amana Tool 49510 $29.90
$22.43
0.31255/16 1.1251-1/8 0.51/2 0.51/2 4770647706 0- 22 0- 2.43752-7/16 0Timberline 320-52 $29.85
$20.90
0.3753/8 11 0.6255/8 0.251/4 4772347723 0.251/4 22 0.251/4 Dia. Ball Bearing 22 0Amana Tool 49511 $43.55
$32.66
0.3753/8 1.1251-1/8 0.6255/8 0.251/4 4770447704 0.3753/8 22 0.3753/8 Dia. Ball Bearing 2.1252-1/8 0Amana Tool 49531 $43.55
$32.66
0.3753/8 1.251-1/4 0.6255/8 0.251/4 4770647706 0.51/2 22 0- 2.18752-3/16 0Amana Tool 49512 $33.60
$25.20
0.3753/8 1.251-1/4 0.6255/8 0.251/4 4770647706 0- 22 0- 2.18752-3/16 0Timberline 320-26 $29.20
$20.44
0.3753/8 1.251-1/4 0.6255/8 0.51/2 4770647706 0.51/2 22 0- 2.56252-9/16 0Amana Tool 49514 $33.60
$25.20
0.3753/8 1.251-1/4 0.6255/8 0.51/2 4770647706 0- 22 0- 2.56252-9/16 0Timberline 320-30 $29.20
$20.44
0.3753/8 1.3751-3/8 0.6255/8 0.51/2 47701**47712 or 47701 0.6255/8 44 0*4 Flute Design 2.68752-11/16 0Amana Tool 49543 $56.20
$42.15
0.43757/16 1.3751-3/8 0.6255/8 0.51/2 4770647706 0.51/2 22 0- 2.56252-9/16 0Amana Tool 49515 $72.10
$54.08
0.51/2 1.6251-5/8 0.687511/16 0.51/2 47701**47712 or 47701 0.6255/8 44 0*4 Flute Design 2.752-3/4 0Amana Tool 49545 $62.95
$47.21
0.51/2 1.51-1/2 0.753/4 0.251/4 4770647706 0.51/2 22 0- 2.252-1/4 0Amana Tool 49516 $39.40
$29.55
0.51/2 1.51-1/2 0.753/4 0.251/4 4770647706 0- 22 0- 2.252-1/4 0Timberline 320-34 $34.15
$23.91
0.51/2 1.51-1/2 0.753/4 0.51/2 4770647706 0.51/2 22 0- 2.6252-5/8 0Amana Tool 49518 $39.40
$29.55
0.51/2 1.51-1/2 0.753/4 0.51/2 4770647706 0- 22 0- 2.6252-5/8 0Timberline 320-38 $34.15
$23.91
0.56259/16 1.6251-5/8 0.753/4 0.51/2 4770647706 0.51/2 22 0- 2.6252-5/8 0Amana Tool 49517 $72.95
$54.71
0.6255/8 1.751-3/4 0.8757/8 0.51/2 4770647706 0.51/2 22 0- 2.752-3/4 0Amana Tool 49519 $59.40
$44.55
0.6255/8 1.751-3/4 0.8757/8 0.51/2 4770647706 0- 22 0- 2.752-3/4 0Timberline 320-54 $53.55
$37.49
0.753/4 22 11 0.51/2 4770647706 0.51/2 22 0- 2.8752-7/8 0Amana Tool 49520 $65.40
$49.05
0.753/4 22 11 0.51/2 4770647706 0- 22 0- 2.8752-7/8 0Timberline 320-42 $50.35
$35.25
0.8757/8 2.252-1/4 1.251-1/4 0.51/2 4770647706 0.51/2 22 0- 3.06253-1/16 0Amana Tool 49521 $128.10
$96.08
0.8757/8 2.252-1/4 1.251-1/4 0.51/2 4770647706 0- 22 0- 3.06253-1/16 0Timberline 320-56 $90.05
$63.04
11 2.52-1/2 1.251-1/4 0.51/2 4770647706 0.51/2 22 0- 3.18753-3/16 0Amana Tool 49522 $128.10
$96.08
11 2.52-1/2 1.251-1/4 0.51/2 4770647706 0- 22 0- 3.18753-3/16 0Timberline 320-58 $98.80
$69.16
1.1251-1/8 2.752-3/4 1.3751-3/8 0.51/2 4770647706 0.51/2 22 0- 3.253-1/4 0Amana Tool 49523 $198.55
$148.91
1.251-1/4 33 1.51-1/2 0.51/2 4770647706 0.51/2 22 0- 3.253-1/4 0Amana Tool 49524 $209.10
$156.83
1.251-1/4 33 1.51-1/2 0.51/2 4770647706 0- 22 0- 3.253-1/4 0Timberline 320-60 $136.05
$95.24
1.51-1/2 3.53-1/2 1.751-3/4 0.51/2 4770647706 0.51/2 22 0- 3.6253-5/8 0Amana Tool 49526 $236.20
$177.15
WARNING!: #320-58 & #320-60 are not intended for use in a handheld router, use in a table-mounted router only!

Max RPM:
49519 = 28,000
49520 = 22,000
49521 = 22,000
49522 = 18,000
49523 = 16,000
49524 = 16,000
49526 = 15,000

Note: Bits with 1" and above diameter are not guaranteed due extreme diameters. For best results using a large diameter bit, it is best to first use a smaller radius bit or chamfer the material prior to using the larger radius bits.
Tool life will be prolonged and a smoother finish will result.

#MR0110, MR0112 , MRR112 & MR0114 are Corner Round Bits with Miniature Ball Bearing Guides.

For more Miniature Ball Bearing Guide Router Bits, Please click here

DRB-504 Replacement Parts: ball bearing: 47706; screw: 67096; washers: 67082

* 4 flute design for super-smooth finish.

**Use replacement bearing 47712 for corner rounding or 47701 for beading.

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