Minerallac High Speed Jobber D...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$9.80
Minerallac High Speed Jobber Drill, 118° Point, Steel

Minerallac High Speed Jobber Drill, 118° Point, Steel

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Model: 91605D

In Stock (leaves warehouse same day if ordered before 3pm ET)

$9.80
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5/32" High Speed Jobber Drill, 118° Point, Steel

  • Application

    • Considered an all purpose drill bit Jobbers are most notable for having a long length compared to its diameter
    • Jobber Drill Bits are manufactured in a number of different styles for purpose in a variety of different applications making them among the most popular drill bits

Manufacturer Resources

Product Specs

Material Usage:
Works Great in Wood, Aluminum, Mild Steel
Product Type:
Twist Drill Bit
Product Finish:
Two Tone
Department:
Electrical
Product Subgroup:
Drill & Driver Bits
Product Group:
Power Tools & Accessories

Minerallac 91605D – Frequently Asked Questions

1) What materials can I drill with the Minerallac high speed jobber drill bits?
These high speed steel jobber bits are meant for wood, aluminum, and mild steel. That covers most electrical rough-in work: wood studs and plates, aluminum channel, and light steel strut or sheet. For hardened steel, masonry, or concrete anchors you need a different bit type entirely (cobalt or carbide-tipped), not an HSS jobber.
2) What diameters do the Minerallac 118 degree jobber drill bits come in?
Two sizes: 1/8 inch (part 91605D) and 5/32 inch (part 91607D). Both are high speed steel with a 118 degree point.
3) Is a 118 degree point the right choice, or do I need a 135 degree split point?
The 118 degree point on these Minerallac jobber bits is the general purpose grind, and it cuts well in wood, aluminum, and mild steel. It is not self-centering, so on steel you will want a center punch or pilot mark to keep it from walking. A 135 degree split point is the one to reach for when you are drilling harder steel without a punch mark.
4) I need a 1/8 inch pilot hole for sheet metal screws in a panel enclosure. Is this the bit?
The 1/8 inch Minerallac jobber bit (91607D is the 5/32; 91605D is the 1/8) handles mild steel, so a painted steel enclosure wall is within range. Punch the mark first so the 118 degree point does not skate, run slow with firm pressure, and back off as it breaks through to limit burring.
5) What is the two tone finish on these drill bits for?
Two tone is the surface treatment on these high speed steel jobber bits, the common black-and-gold style coloring used to mark HSS bits. It is cosmetic and identifying rather than a hardness change; the cutting performance comes from the high speed steel body and the 118 degree grind.
6) Where are Minerallac jobber drill bits made?
Country of origin on these high speed steel jobber bits is China.
How fast can I get the Minerallac 91605D delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Minerallac 91605D come with a warranty?
Absolutely. The Minerallac 91605D is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Minerallac 91605D?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Minerallac 91605D from ZenSupply?
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