Prentice Twist Drills

Ultra-Kut Black and Gold Series prentice twist drills are machined from special M2 hi-molybdenum steel. The 135⁰ split point provides accurate self starting holes without the need for a center punch.

The precision ground point, flutes, and body provide the highest performance and accuracy. These twist drills are heat treated for measurably harder and longer lasting bits than standard high speed steel (HSS). The black and gold finish enhances performance and abrasion resistance.

These heavy duty prentice twist drills are recommended for a wide range of materials of low to medium tensile strength.

Available in:

  • Bulk
  • Indexes:
    • 8   Piece U0248
      • 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1
    • 33 Piece U0249
      • 1/2 to 1 in 64ths
  • Prentice Twist Drills
  • Prentice Twist Drills
  • Prentice Twist Drills
SizeP/NSizeP/N
33/64U020055/64U0222
17/32U02017/8U0223
35/64U020257/64U0224
9/16U020329/32U0225
37/64U020459/64U0226
19/32U020515/16U0227
39/64U020661/64U0228
5/8U020731/32U0229
41/64U020863/64U0230
21/32U02091U0231
43/64U02101-1/32U0232
11/16U02111-1/16U0233
45/64U02121-3/32U0234
23/32U02131-1/8U0235
47/64U02141-5/32U0236
3/4U02151-3/16U0237
49/64U02161-7/32U0238
25/32U02171-1/4U0239
51/64U02181-5/16U0240
13/16U02191-3/8U0241
53/64U02201-7/16U0242
27/32U02211-1/2U0243
27/32U02211-1/2U0243

Description

135⁰ Split point
M2 hi-molybdenum High Speed Steel
3 flats on shanks

Application

Holemaking in low to medium tensile strength materials

Specifications

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