Drilling - Mirco Stops - Countersinks
 
KTC279 Micro Stop Countersink - Ball Bearing
The KTC279 Ball Bearing Micro Stop Countersink Cage is adjustable in increments of 0.001” for precision countersinking. Features include ¼” shank, with 9/32” shaft travel, ¼” x 28 thread and will accept cutters up to 5/8” diameter. Ball Bearing design provides for a smooth operation and excellent spindle support. Rated for up to 10,000 rpm use.

KTC279K Mirco Countersink Kit - includes KTC279 Countersink KTC283-40, KTC283-30, KTC283-21 & KTC283-10 Countersink Cutters.

 
 
 
 
KTC280 Micro Stop Countersink - Ball Bearing - "No Mar"
The KTC280 Ball Bearing Micro Stop Countersink Cage includes a wide flange No Mar protective footpiece which helps to reduce scratches and tool marks to even the most sensitive areas. The unit is adjustable in increments of 0.001” for precision countersinking. Features include ¼” shank, with 9/32” shaft travel, ¼” x 28 thread and will accept cutters up to 5/8” diameter. Ball Bearing design provides for a smooth operation and excellent spindle support. Rated for up to 10,000 rpm use.

 
Wide Flange Style
 
$29.00
 
KTC278-EXT Extended Micro Stop Countersink 3"
The KTC278-EXT extended microstop countersink has a 5/16” shank that is adaptable to a quick change chuck or a 3/8” drill chuck. The 3” extended shirt is perfectly suited for countersinking in deep narrow areas inaccessible to conventional countersinks. It has 1/4” x 28 female threads and accepts cutters to 3/8” diameter. It is 7” OAL and is rated for 3,000 rpm. Adjustments are in .001 increments.

• KTC278EXT-1/4 Extended Mircostop Countersink with standard straight shank.

 

KTC278-EXT Shown
 
 
KTC278 Standard Micro Stop Countersink
The KTC278 Standard Micro Stop Countersink Cage is adjustable in increments of 0.001” for precision countersinking. Features include ¼” shank, with 9/32” shaft travel, ¼’” x 28 thread, and will accept cutters up to ½” diameter. The small diameter is perfect for tight areas including seat tracks. Rated for up to 3,000 rpm use.

 
 
$26.00
 
KTC277 "Mini" Micro Stop Countersink
The KTC277 is designed with a ¼” x 28 threaded spindle which can be operated in angle drills. The “Mini” Micro Stop Countersink Cage is adjustable in increments of 0.001” for precision countersinking. Features include 1.65” in length, the ¼” x 28 threaded spindle, 3/32” shaft travel, ¼’ x 28 thread, and will accept cutters up to 9/16” diameter. Rated for up to 3,000 rpm use.  
 
$26.00
 
 
KTC283 Integral Pilot Countersink Cutters 100° - High Speed Steel (HSS)
 
The KTC283 series countersink cutters are made from quality High Speed Steel. Precision ground to exacting tolerances and relieved to ensure concentricity of the countersink angle. Cutters are designed to work with all adjustable stop or mirco-stop countersinking units. Three flute design with a ¼” x 28 threaded shank. They are also used with angle drills and attachments with the same specifications. Please contact for sizes not shown.  

 
 
Model # Pilot
Size
Body
Diameter
Price
KTC283-40 #40 7/16 8.00
KTC283-30 #30 7/16 8.00
KTC283-27 #27 7/16 8.00
KTC283-21 #21 7/16 8.00
KTC283-20 #20 7/16 8.00
KTC283-16 #16 7/16 8.00
KTC283-12 #12 7/16 8.00
KTC283-10 #10 7/16 8.00
KTC283-3/16 3/16" 7/16 8.00
KTC283-1/4 1/4" 7/16 8.00
Model # Pilot
Size
Body
Diameter
Price
KTC283-3/8-40 #40 3/8" 7.50
KTC283-3/8-30 #30 3/8" 7.50
KTC283-3/8-27 #27 3/8" 7.50
KTC283-3/8-21 #21 3/8" 7.50
KTC283-3/8-20 #20 3/8" 7.50
KTC283-3/8-16 #16 3/8" 7.50
KTC283-3/8-12 #12 3/8" 7.50
KTC283-3/8-10 #10 3/8" 7.50
KTC283-3/8-3/16 3/16" 3/8" 7.50
KTC283-3/8-1/4 1/4" 3/8" 7.50
Model # Pilot
Size
Body
Diameter
Price
KTC283-1/2-40 #40 1/2 8.00
KTC283-1/2-30 #30 1/2 8.00
KTC283-1/2-27 #27 1/2 8.00
KTC283-1/2-21 #21 1/2 8.00
KTC283-1/2-20 #20 1/2 8.00
KTC283-1/2-16 #16 1/2 8.00
KTC283-1/2-12 #12 1/2 8.00
KTC283-1/2-10 #10 1/2 8.00
KTC283-1/2-3/16 3/16" 1/2 8.00
KTC283-1/2-1/4 1/4" 1/2 8.00
 
 
 
 
 
 
KTC Integral Pilot Countersink Cutters 82° & 120° - High Speed Steel (HSS)
 
The KTC countersink cutters are made from quality High Speed Steel. They are precision ground to exacting tolerances and relieved to insure concentricity of countersink angle. The cutters are designed to work with all adjustable stop or mirco-stop countersinking units. Three flute design with a ¼” x 28 threaded shank. Also used with angle drills and attachments with the same specifications. Body diameter of 1/2".  Please contact for sizes not shown.


 

 
Model # Pilot
Size
Degree Price
KTC283-82-40 #40 82° 16.00
KTC283-82-30 #30 82° 16.00
KTC283-82-21 #21 82° 16.00
KTC283-82-10 #10 82° 16.00
KTC283-82-1/4 #1/4 82° 16.00
Model # Pilot
Size
Degree Price
KTC283-120-40 #40 120° 20.00
KTC283-120-30 #30 120° 20.00
KTC283-120-21 #21 120° 20.00
KTC283-120-10 #10 120° 20.00
KTC283-120-1/4 #1/4 120° 20.00
 
 
 
 
KTC Integral Pilot Countersink Cutters 100° - Carbide
 
The KTC284 series countersink cutters are made from quality High-Speed Steel HSS and are carbide tipped for a longer cutting life. They are precision ground to exacting tolerances and relieved to ensure concentricity of countersink angle. The cutters are designed to work with all adjustable stop or micro stop countersinking units. Two flute design with a ¼” x 28 threaded shank. They are also used with angle drills and attachments with the same specifications. Please contact for sizes not shown.  

 
Model # Pilot
Size
Body
Diameter
Price
KTC284-3/8-40 #40 3/8 BD 48.00
KTC284-3/8-30 #30 3/8 BD 48.00
KTC284-3/8-21 #21 3/8 BD 48.00
KTC284-3/8-10 #10 3/8 BD 48.00
KTC284-3/8-1/4 #1/4 3/8 BD 48.00
Model # Pilot
Size
Body
Diameter
Price
KTC284-1/2-40 #40 1/2 48.00
KTC284-1/2-30 #30 1/2 48.00
KTC284-1/2-21 #21 1/2 48.00
KTC284-1/2-10 #10 1/2 48.00
KTC284-1/2-1/4 #1/4 1/2 48.00
 
 
 
KTC575C Chatterless Countersink Cutters 100° - Non Piloted
 
The KTC575C 100° Chatterless threaded countersink cutter is designed with 6 flutes, 3/8” body diameter and ¼” x 28 threads. Made from quality High Speed Steel.  
 
$11.00
 
KTC917 Replaceable Pilot Countersink Cutters 100° - Carbide
 
The KTC917 series Carbide Tipped series countersink cutters are made from quality High Speed Steel and are carbide tipped for a longer cutting life. They are precision ground to exacting tolerances and relieved to ensure concentricity of countersink angle. The cutters are designed to work with all adjustable stop or mirco-stop countersinking units. Two flute design, 100° with a ¼” x 28 threaded shank. Intended for use on highly abrasive and hard materials. Units feature a thru hole to facilitate the various pilot sizes with only one cutter. The pilot is locked into place with the use of a set screw and can be change easily. KTC918 Pilot sold separately. (see below)


 

 
 
Model # Body
Diameter
Inches
Pilot
Hole
Inches
Number of
Flutes
Shank Size Price
KTC917A 1/2 3/32 2 1/4 - 28 49.00
KTC917B 5/8 1/8 2 1/4 - 28 49.00
 
 
KTC918 Replaceable Countersink Pilots
 
The KTC918 series Replaceable Countersink Cutter Pilots are for use with our KTC917 series carbide countersink cutters. Made from quality High Speed Steel. Please contact for sizes not shown.   Pilots For Carbide Tipped Stop Countersinks
 
Model # Shank
Diameter
Inches
Pilot
Diameter
Price
KTC918-1 5/64 #40 12.00
KTC918-2 3/32 #30 12.00
KTC918-3 3/32 #21 12.00
KTC918-4 3/32 #10 12.00
KTC918-5 3/32 1/4" 12.00
Model # Shank
Diameter
Inches
Pilot
Diameter
Price
KTC918-6 1/8 #30 12.00
KTC918-7 1/8 #21 12.00
KTC918-8 1/8 #12 12.00
KTC918-9 1/8 #10 12.00
KTC918-10 1/8 1/4" 12.00